The Search for My Perfect Swing — Part 11

The Flight of My 1-1/2 Flip Horseshoe (Continued)


When I first started pitching horseshoes, I wanted to put some sort of reference at the highpoint of my shoe flight. Unfortunately, the only information I was able to find was a recommendation to throw the shoe approximately 2 feet above your height. For me, about 8 feet. The location of the reference point was declared to be at about 2/3 of the distance to the stake. This proved to be incorrect. The actual highpoint downrange never reaches halfway. The table below shows the downrange location for any selected highpoint from 4 feet to 14 feet. The table is based on a calculation of releasing the shoe 1.5 feet from the 30 foot foul line and 3 feet from the ground. My personal highpoint is actually at 6.75 feet (6.8 for the plot values in 1/100th of a second increments).

The plot at the top of this page was calculated in 1/40th second increments. To provide more accurate results, I changed the plot by increasing the values to 1/100th of a second increments. I used the frame mentioned earlier to determine my release point of 3.0 feet, 1.5 feet in front of the foul line and highpoint downrange of 6.75 feet reached at 10.75 feet downrange.There was an added bonus by finding my release point. I was able to determine that my horseshoe rotates 580 degrees. I can now find two downrange points from this information. The location when my shoe is flat and open to the stake and the location when my shoe is flat and pointing away from the stake. So, in addition to the highpoint and downrange location, I can also place a marker before and after the highpoint location when the center of gravity offers a flat shoe in flight. This is important when throwing a flipping shoe. Since I am trying to pass the center of gravity through the appropriate points, a flipping shoe could occupy 7+ inches as it rotates in space. A turning shoe does not have this problem. I am hoping to create an animated GIF of the flight of my shoe as it rotates toward the stake.

There were many formulae found to produce results regarding distance when trajectory is known, but, nothing that talked about calculations that provided results when you knew the distance, height and release point. I have written a Perl program that calculates the XY plot of a horseshoe in flight when the release point and highest point of flight is known. In addition, it calculates the initial launch speed, time of flight, initial launch angle and location of the highpoint downrange. Each point on the plot is in 1/40th of a second increments. I decided to calculate the shoe flight from 30 and 40 feet. I later calculated the same plots at 1/100th of a second increments.

The PDF file below extracts the information from each plot and places the results in table form for a distance of 25.5 feet (Elders pitching from 30 feet with a foul line at 27 feet). My release point is actually 1.5 feet ahead of the 27 foot foul line.

Table of Plots — 25.5 Feet

Click for PDF image of plots for 25.5 feet to the stake

Below is the plot of my shoe flight in 1/100th of a second increments. Double-click image for larger view. The number of plot points is equal to the time of flight X 100. My shoe flight plot contains 113 plot points.

Highpoint 6.8 Feet

Highpoint 6.8 Feet

The Plotted Rotation of My 1-1/2 Flip

The plot below shows the rotation of my shoe in flight. My shoe starts out 40 degrees below horizontal. It rotates 580 degrees total, i.e., 1-1/2 flips plus 40 degrees. I could now place markers downrange where the shoe is flat in flight. If you wanted to be adventurous you could place a post, rod or PVC pipe, etc. at the point where the shoe is perfectly open downward and vertical. That point is 5.57 feet downrange and 5.9 feet up. The flat shoe is just before the highpoint downrange and is located at 9.4 feet downrange and 6.7 feet up. Placing a string would best be placed where the shoe is horizontal open or closed. The shoe is flat in three places. The first at 1.7 feet downrange and 4.1 feet up. The second mentioned above and the third after the highpoint downrange. Placing more than one marker is more accurate than simply placing a string at the highpoint. The plot below is in 1/323rd second increments.

Horseshoes Rotated Every 90 Degrees

Horseshoes Rotated Every 90 Degrees

I couldn’t resist. I’ve animated the image below. Put the cursor in the image below and mouse click. The animated flight of my horseshoe is shown (it loops 4 times and stops).

My Shoe Flight Animated

My Shoe Flight Animated

I will be providing a table and plot for 40 foot pitchers at this point later.

Your Personal Plot

If you would like a plot of your personal shoe flight, please provide three values. 1) Distance to the stake from your horizontal release point (how far to the stake); 2) Distance from the ground when shoe is released; 3) Your highpoint, if known, if not, provide a height range, i.e., 6.0 to 8.0 feet. I’ll run the plot software and generate the results as shown in the plot above with your highpoint/downrange locations. Email me with the three values to: bobrass at verizon dot net

Continue to Part 12

Table of Contents

The Search for My Perfect Swing — Part 10

The Maryland State Tournament of Champions


This tournament was scheduled for Saturday, August 30. It was sponsored by the Baltimore Metro Horseshoe Club with 12 pits located in Essex, Maryland. I pre-registered as an Elder and received an email notification that I was to pitch at 6:00 p.m. I didn’t know whether I would be pitching in a class based on ringer average or with other Elders. When I arrived I discovered that I would be pitching in the Elder class and there would be four of us pitching. There were two 20% Elders, myself at 30% and one 60% Elder. Plan was 40 points or 40 shoes whichever came first, two rounds.

The afternoon classes were still pitching and looked like the start would be later than 6:00 p.m. Finally, about 7:00 we were able to start. My schedule was to pitch the 3rd, 4th and 1st rated pitchers. I won my first match with a 53.8% ringer average with 14 ringers, 26 shoes. I won my second match with a 46.6% ringer average with 14 ringers, 30 shoes. I lost my third match to the 60% pitcher, but, had a 38.8% ringer average with 14 ringers, 36 shoes. During the middle of the third match we began to hear thunder and finally lightening. It was decided to terminate the session. The 60% pitcher won the first place trophy and I won a beautiful second place trophy. My ringer average for the three matches 45.6% with 42 ringers in 92 shoes and 10 double ringers.

I marvel at professionalism shown by each of the organizers of the tournaments that I have participated in. Each tournament location has been well prepared for the event to come. Each has a concession stand with hotdogs, hamburgers, drinks, restroom facilities and a selection of horseshoes and shirts. Many of the workers from other horseshoe clubs show up to help out with recording stats and keeping score. The secretary of the Frederick Horseshoe Pitching Association drove from Pennsylvania to help with the scorekeeping in Lusby and Essex, Maryland. I try to make it a point to stop and thank the organizers and helpers.

I was extremely happy with my showing, albeit, a short one. I am hoping that my next tournament will have me placed in a class with like average pitchers. Further, I hope to end the season with a 50% ringer average from 30 feet. I am beginning to make plans for my winter practice.

Continue to Part 11 — The Flight of My 1-1/2 Flip Horseshoe (Continued)

Table of Contents

The Search for My Perfect Swing — Part 9

The Flight of My 1-1/2 Flip Horseshoe


As promised, I setup the release and highpoint frame previously put together. I hoped that my Canon S230 would provide a series of images that would show the release point and highpoint. Unfortunately, the camera was only capable of capturing three images of the shoe in flight. I am showing the two sets of photographs below. The plot shown at the top of this page represents the flight as seen. The shoe is released 3 feet from the ground and 25-1/2 feet from the stake. Each shoe reaches a high point of 6 feet 9 inches at 10 feet 9 inches downrange.

Each line vertically and horizontally is divided into 3 inch squares. The base of the frame is 2 feet above the ground. The last vertical string to the right end is located at 10 feet from the foul line. The highest horizontal string is located 7 feet above the ground.

Release Point

Release Point

Photo 1 Frame 1 of 3

Photo 1 Frame 1 of 3

Phoeo 1 Frame 2 of 3

Photo 1 Frame 2 of 3

Phoeo 1 Frame 3 of 3

Photo 1 Frame 3 of 3

Photo 2 Frame 1 of 3

Photo 2 Frame 1 of 3

Photo 2 Frame 2 of 3

Photo 2 Frame 2 of 3

Photo 2 Frame 3 of 3

Photo 2 Frame 3 of 3

I later borrowed a Sony DR-TRV140 Video Camera and taped the flight of the horseshoe. I transferred the Sony video to a VHS tape. I then played the VHS tape through a GE VCR, through a GrabIt Pro video capture device and stopped each individual frame on tape with my VCR. Unfortunately, the recording speed of the Sony video camera was not fast enough to provide very much additional information. I need to use a faster frame per second video camera. The horseshoe travels through the 10 foot frame in less than 1/2 second.

The continuation of Part 9 continues on Part 11. Part 11 will discuss the importance of knowing the various mathematical values of the flight of a horseshoe.

Continue to Part 10 — The Maryland State Tournament of Champions
Continue to Part 11 — The Flight of My 1-1/2 Flip Horseshoe (Continued)

Table of Contents

 

The Search for My Perfect Swing — Part 8

I Found My Grip!


Originally, I was going to use Part 8 to discuss the release, highpoint and calculations. I tried to use my Canon S230 to record the Release Point and Highpoint and apply the results to the software that shows the flight of the horseshoe, speed, etc. Unfortunately, my Canon was only able to capture two images of the shoe in flight. In general, a horseshoe travels from release to stake in about 1 second. However, I did calculate the locations that I photographed and applied them to the header of this blog (XY plot above). I have since borrowed a video camera, installed video capture equipment and loaded the video capture software. I am hoping that the video camera will provide more definitive results.
In the meantime, one of the items I had completely overlooked, was my log book. As I practiced, I would make notes about experiments and the results. I had noted that when I extended my arm fully and released the shoe, the shoe would not flip as quickly. I was not happy that I had begun to add a little flip movement to the horseshoe during the release. That is not consistent with a Constant. Reading through my log book, I realized that I had worked on this sometime earlier. I discovered that if I held the shoe with caulks-up and allowed the shoe to be held naturally by the caulk, the shoe would droop when my arm was parallel to the ground. (See photo below) I wondered if this natural droop could replace the added, but, unwelcomed flip movement.
Selected Flip Grip

Drooping Flip Grip

This morning, I grabbed three sets of shoes, stepped up to the foul line, took the caulks-up flip grip, raised my arm fully extended, parallel to the ground, let the shoe droop naturally, locked it in that position throughout the swing and released it without any added flipping action. The shoe flipped perfectly 1-1/2 turns — ringer! I repeated the same process 11 more times and threw 12 consecutive ringers. I had had temporary success before. Time to take a break and try again later.

I stopped, had some lunch, and returned to go through the same routine again.  This time 8 more ringers in a row. I continued for an hour and threw ringers every time I was on plane and line of flight. I now believe I have a grip that I can rely on.

Continue to Part 9
Table of Contents

The Search for My Perfect Swing — Change Log

Changes

19 August 2008 — (Change 1) The Stride While I was preparing the information for Part 8, I had an opportunity to view my release as part of a video. I was surprised at how much I was moving my body forward during the forward swing. My preliminary test, indicated that standing at the foul line with both feet side by side and pointing down the target line (not pointing at the stake) was more stable. I may change it back after I’ve had an opportunity to prepare a better video.

20 August 2008 — (Change 2) The On-Plane Aid I was finally able to put the modified aid (second arc) into practice. I had to modify it a bit. First, added an additional 9 inches to both arcs to allow for a longer follow-through. Secondly, added skewer pegs to anchor the base and added locking screws to lock in the width I selected, between both arcs.

24 August 2008 — (Change 3) The Stride As I had suspected, I needed to change my stance back to my original position. (See Change 1 above). Placing both feet side by side required that I lean to the right to allow the shoe to pass by my leg. Even so, I kept hitting my pant leg as I passed by my right leg. I will have to work harder to control my body movement. I’ve decided to add a little monitor to my Swing Arc aid. I’ll need to make it adjustable, both horizontally and vertically.

20 September 2008 — (Change 4) Grip Changed After my last tournament, I found it necessary to turn the shoe over and grip the caulk from below. This was necessary for two reasons. I was losing control of the shoe during the backswing and release due to slippery shoes and glove. It was forcing me to grip harder than I was comfortable with, and caused inaccuracy and incorrect flip. Turning the shoe over and locking my fingers around the underside of the caulk solved the problem.

20 September 2008 — (Change 5) Stance Changed The stance change was necessary to compensate for the grip change. I experimented a bit with the placement of my feet to try to stabilize my balance. I started with the general balance martial arts stance of 35 degrees and 10 degrees. I decided to extend my arms and bring them together with finger tips touching. I rotated my body left until my right arm was pointed down the line of flight. The photo shown is the result of that change. CAUTION: This stance places a fair amount of stress on the knees.

20 September 2008 — (Change 6) Tightened Line of Flight The stance change caused a change in my backswing. The swing still goes back and forth down the line of flight, but, my backswing is much shorter. I reach my stop point much sooner and seem to be able to feel the line of flight much better.
 
20 September 2008 — (Change 7) Pre-Release Rehearsal This change was the result of my last tournament. I find that a swing up and back without a stop at the top of my pre-swing eliminates tension in my swing. I do need to practice this move a bit and force myself to swing up a second time if my visual alignment is not correct.

1 October 2008 — (Change 8 ) A Slight Stance Change Moving my right leg further back produces three beneficial results. (1) It virtually eliminates the shoe from going to the right of the stake; (2) It gives me a mental target for the backswing, and; (3) It stabilizes my stance to be more centered and balanced.

 

The Search for My Perfect Swing — Contents

Table of Contents

Welcome to my horseshoe blog. This blog is directed to the new horseshoe pitcher, like me, who is interested in joining the large population of pitchers wanting to improve their technique. Even though it is primarily directed at the Elder pitcher, those 70 and older, women, and youth who primarily flip the horseshoe, there should be some tidbits of information that might help any pitcher improve their ringer average. Golfers have a huge inventory of teaching aids available to help with their game. The horseshoe pitcher has very little. This blog covers my search to improve my game. Along the way I have tried to create aids that will help my technique. As I search and refine, I’ll be modifying this blog, so, I’ve decided to also include a Change Log that may cause a change in some particular area. I will place a link in the changed area, linked back to the Change Log for clarification.

If you want to bypass Parts 1 through 16 simply jump directly to Part 17 to find the end of my search. It has been a fascinating struggle, but, in the end I remained true to my original beliefs. It is possible to break down the pitching of a horseshoe to it’s individual parts and determine when you have deviated from established standards. On 26 July the NHPA has approved one of my new designs for competition. Check it out. Skip to Part 18 OR
Check out the Hilfling Viking on YouTube
Check out the Hilfling Viking at 420fps on YouTube

Part 21 completed on 13 October 2009.

Part 2
The Pit
The Approach
The Pit Material

Part 3
Horseshoes
Horseshoe Web Pages
My Horseshoes
Additional Stuff

Part 4
Constants
  Constant 1 — The Pendulum Swing
  Constant 2 — Center of Gravity
  Constant 3 — Line of Flight
  Constant 4 — Continuation of the Line of Flight
  Constant 5 — Addressing the Stake
  Constant 6 — The Stride
  Constant 7 — Arm Rotation
  Constant 8 — Release Point
  Constant 9 — High Point of Flight

Part 5
Mechanical Teaching Aids
  Line of Flight
  The All Important Plumb
  The On-Plane Aid
  Correcting Your Stride
  The Electronic Glove
  Pendulum Man
  Release and Height Frame

Part 6
My First Doubles Tournament
It’s My Turn

Part 7
My Grip(s)
The Flip Grip
The Turn Grip
Warming Up for the Turn

Part 8
I Found My Grip!

Part 9
The Flight of My 1-1/2 Flip Horseshoe

Part 10
The Maryland State Tournament of Champions

Part 11
The Flight of My 1-1/2 Flip Horseshoe (Continued)
Table of Plot Results for 30 Foot Approach
The Plotted Rotation of My 1-1/2 Flip
Your Personal Plot

Part 12
Saturday’s Tournament and the Metronome
Horseshoe Flight Evaluation Form
Using a Metronome

Part 13
It’s Debug Time
Grip Changed
Stance Changed
Tightened Line of Flight
Pre-Release Rehearsal
It Looks Like My Search May Be Over
Future Plans

Part 14
A Few Random Comments
A Slight Stance Change
Making the Most of My Practice
Staying in Shape

Part 15
My Final Sanctioned Tournament for 2008
A Newly Found Secret

Part 16
Catching Up
An Unexpected Award
Testing New Shoes
New Pit Material — Blue Clay
A New Website to Swap/Sell/Trade Shoes
Pro Horseshoe League
Is This my Perfect Swing?

Part 17
80% and A New Horseshoe is Born
A Horseshoe is Born
How I Reached 80%
The Horseshoe
The Setup
The Address
The Backswing

Part 18 — The NHPA approves the Viking
The Parabola
The Wings
Gripping the Viking
Turning the Viking

Part 19
The 2009 Season — A Critique
Three New Horseshoe Designs Ready for Production
A Laser Based Pitching Aid

Part 20
My Current Pitching Method
The Setup
Starting Position
Left Foot at Release
Distance from Foul Line
Settling In
The Swing Cadence
Troubleshooting
Swing Change (Old/New Method)

Part 21
Singles Tournaments
My First Tournament
Subsequent Tournaments
Tournament Preliminaries
Score Keeping
Maintaining Your Pits
The Match Begins
Your Day Is Done
Doubles Tournaments

Change Record
Stance
On-Plane Aid

The Search for My Perfect Swing — Part 7

My Grip(s)

I basically use two different grips with a third variation, pitching from 30 feet. All grips are used with the Snyder EZ Flip. Two of these grips are the same, just turning the shoe over. I’ve painted my shoes red, to better show what the grip looks like in my fingers. It is extremely important to maintain consistency, and that I grip the shoe exactly the same for every flip and/or turn. So, I go through a little grip routine while stepping to the foul line. Further, it insures that the center of gravity of the shoe is located exactly the same each time. Remember, it is the center of gravity that I am trying to throw/pitch at the stake. I am not wearing gloves in any of these photos, but, under normal circumstances I use leather motorcycle gloves.

The Flip Grip

The photo below shows index finger dangling the shoe prior to taking the grip for either flip. I simply crook my index finger and dangle the shoe at the tip of the hook from the first joint in the finger. From there, I will take the two flip grips. More importantly, it establishes how the shoe will flip through the air. With the grip taken in this orientation, it insures that the shoe will be slightly turned when it hits the stake, which helps with bounceback. If I turned the shoe so that the tips were parallel to the ground the shoe would fly very much like a regular flipper.

Dangle prior to grip

Dangle prior to grip

The next two photos show the two flip grips, which are essentially the same. With the caulks up, when I grip the shoe, I insure that the shoe will hit the ground with caulks down. If you’re pitching in sand or dry clay, the shoes will slide on the caulks. So, sometimes if you’re a little short, you may salvage a ringer. I’ve done a little experimenting with throwing one shoe one way and the second shoe the opposite. I would like to study whether the shoe orientation affects the arrival of an opponents shoe. I’ve come to no conclusions on this yet.

Shoe lands caulks up

Flip landing caulks up


Flip landing caulks down

Flip landing caulks down


The next two photos will show each shoe in the two flip grips, one caulks down and one caulks up. I feel the caulks down grip is more stable. The thumb rests on the flat top of the shoe while the index finger fits nicely at the back of the underside caulk. See the grip above.
Flip--caulks down landing caulks up

Flip--caulks down landing caulks up


Flip--caulks up landing caulks down

Flip--caulks up landing caulks down

The Turn Grip

In this grip I dangle the shoe from the corner of the caulk from the first joint of my thumb. To take the grip I simply close my fingers around the caulk with my index finger almost touching my thumb and my middle finger right below the point of the caulk.

Turn grip

Turn grip


Turn grip for 1/3 turn

Turn grip for 1/3 turn

Warming Up for the turn

When I was experimenting with various grips of the shoe, I discovered that taking the turn grip and rotating the shoe slightly, permitted me to throw the shoe without any rotation or flip. Throwing the shoe this way for 20 or 30 warm up throws, insures that I’m not adding any manipulation with my hands.

Part 8 will discuss the release and exactly where it occurs. I spent a night and about $45 to purchase components and build a frame 5 feet x 10 feet which will sit 2 feet above the ground and permit me to read releases that go as high as 7 feet and downrange 10 feet. I have used multicolored string to create squares 3 inches apart vertically and horizontally. I am hoping that my little Canon S230 will be fast enough to create a video of the release location while using my electronic glove.

Continue to Part 8
Table of Contents

The Search for My Perfect Swing — Part 6

My First Doubles Tournament

I debated on entering this tournament as I didn’t have a doubles partner. However, the entry form had provisions for signing up as a single and matching up with another single on tournament day. The tournament was to be held in Lusby, Maryland. Registration time was set for 8:30 a.m. It was a fair drive of 1-1/2 hours. There were no directions included on the registration form, so, located a website for the Chesapeake Ranch Estates, site of the tournament and requested directions. Received an email saying it was on Clubhouse Drive. Using Mapquests aerial view, was able to locate the horseshoe pits. So, set my alarm for 6:00 a.m.

I awoke at 3:30 a.m. Got ready, had some breakfast and made sure I had everything ready to go. Packed my bag with sunscreen, bug repellent, a frozen bottle of Powerade, a second thermos of cold Powerade, rag for cleaning the shoes, baseball cap and Snyder EZ Flips. I left at 6:30 a.m. I arrived at 7:45 a.m. My directions were accurate. The tournament volunteers were already in the process of setting up, pits uncovered, clay turned, computer setting up, grill heating up. Well organized, I thought. Registration began at 8:15 and I was advised that no other Elder was needing a partner, but, there might be someone available. If not, I’d get my check back and call it a day.

Below is a photo of the tournament director setting up the computer system to record the days events. All of the information from the days events are recorded and ultimately passed on to the NHPA. Ultimately, they will appear on the NHPA website under the NETSTATS selection for each member of the NHPA listed by state and alphebetically by name.

Preparing for the tournament

Preparing for the tournament

About 8:45 I was advised that someone was coming and I’d have a partner. I wondered what shoes he pitched and whether we’d have to use his or mine. Unfortunately, the Elders were not scheduled to pitch until 1:00 p.m. I decided to keep score for a team from Post 7. When the tournament began, there was a little confusion on the proper form for keeping the score. Got that squared away and pitching began. Happy to discover that each team member pitches their own shoes and follows them from pit to pit. Each match would be 40 points or 50 shoes whichever came first. It was 50 shoes for each pitcher, not, 50 for the team. I kept score for 6 matches and received $2.00 ($1.00 each team) per game. Lunch money and money for my scorekeeper later. It was very hot sitting in the sun from 9:00 until 1:00. I was feeling myself wilting from the heat and early awakening.

No warmup is permitted between sessions until all morning matches are completed.

It’s My Turn

At 2:00 p.m. everyone gathered for silent remembrance of our fighting men in action, remembrance of a passing member and National Anthem. Scorecards were passed out, met my partner and discovered that there were 3 teams of Elders. Plan was to do a round robin, pitching each team 3 times with a bye during each round. During my brief warmup, felt that my flip was working better than my turn.

My partner was a member of the local club and 85 years old. We hit it off quickly. The tournament began. My flip was working pretty well, lost the first match, but, had a 40.9% ringer average. We lost the second match, but, again my flip was working well and had a 46.7% ringer average. The bye was next, so, took the time to grab a bite to eat. Third match, another loss, ringer average dropped to 22.7% and continued dropping until I switched to my turn and had a 36.3% average for my last match. Overall average was 30.16% for the day. I couldn’t believe how many ringers my competition was throwing at us. It was obvious that they had much higher averages than my team. I was right. When I returned home I checked the NHPA Netstats averages for the competing teams and discovered they ranged from 40% to 60% per man. Geez, we didn’t have a chance, my partner was at 20% and I was at 30%.

My competitors were surprised I had only been pitching for 1 year and had never seen anyone throw shoes the way I did. A lot of nice complements.

We finished 3rd. No trophy though. Thanked the volunteers for the tournament and got back home at 7:30 p.m. A very long day. It was a fantastic experience. I’m looking forward to the upcoming Maryland State singles tournament in 2 weeks.

I decided to throw this page into the mix to encourage any first time Elder or senior to participate. Think of it as a learning experience and see where your progress has taken you. Ben Hogan once said that tournament competition is the proving ground for what works in practice. My first two games were a validation of my efforts.

Continue to Part 7
Table of Contents

The Search for My Perfect Swing — Part 5

Mechanical Teaching Aids

Part 5 will show you some of the teaching aids I’ve currently developed. Most are “works in progress”, however, I’ll explain their purpose and what I hope to add.

Line of Flight – This is a very simple aid, but, probably the most important. It shows the path that the center of gravity of each shoe should follow to the stake. All of the other aids work off of this very simple string that my pendulum swing should trace back and through.

Line of Flight

Line of Flight

Select the photo and double-click to see a larger version. Note, this is my right side approach for 30 feet. Since I do not stride, I only need this one 16×16″ block to simulate the foul line at 27 feet.

The All Important Plumb – Here are two photos of the plumb. It hangs down directly over the line of flight and permits me to address the stake by aligning the center of gravity of the shoe directly under the plumb. From this position I simply allow gravity to drop the shoe and continue on through the backswing. On the forward swing, I try to release the shoe and touch the plumb on the upswing.

Hanging Plumb

Hanging Plumb

Plumb and Center of Gravity

Plumb and Center of Gravity

The On-Plane Aid – This device took a little planning and about $100 worth of PVC pipe and connectors. The development started with tracing my swing arc. It turns out that my radius is 27 inches. So, this device started with a single arc with a 54 inch diameter. It works beautifully, but, I began to rely too heavily on touching the arc with my wrist back and through. It became apparent that I needed two arcs spaced apart that permitted me to swing back and through without touching either side of two arcs. So, I modified the first device by adding another arc that was adjustable in and out for wider or narrower spacing. Finally, I had to add adjustable feet to accommodate the unevenness of my approach area. Once I have verified my release point, I will be adding a little tickler at the appropriate spot on the upswing arc to synchronize my release point.

Single swing arc

Single swing arc

Double swing arc

Double swing arc

I am considering adding a little reminder that will touch my neck or head to remind me to keep it from moving back and forth. It will also remind me not to alter the vertical swinging of the pendulum (my arm). Moving my body in any direction will disrupt the accuracy of the swing.
NOTE: A LESSON LEARNED – When I first started using this aid I noticed that my shoes would consistently land right of the stake. I realized that when I was dangling my arm down through the arc, that it was in a relaxed state. In the process of swinging my arm forward my arm would straighten slightly. I realized that I needed to extend my arm to a fully extended position, i.e., no bend at the elbow to eliminate this problem. If you want to verify this, hold the shoe at your side in a relaxed manner, then straighten it slightly and note that the shoe moves rightward, off plane. I now concentrate on keeping my arm straight (not rigid) throughout the swing.

Correcting Your Stride – This aid is a simple board to assist in striding correctly to ensure that your hub moves along the line of flight. When I was pitching from 40 feet, I noticed that I had a tendancy to step too far to the right and not parallel the line of flight, forcing the shoes to miss right. This board consists of a divider that allows me to position my feet side by side (straddling the divider), stride forward along the divider on the forward swing and also step forward with my right foot so that both feet ended up even at the foul line. Note — the divider on the board is angled to run parallel to the line of flight. In the Pendulum Swing you do not want to stride toward the stake. You want your hub to follow the line of flight, not your feet, forcing the feet to end up pointed left of the stake but still parallel to the line of flight.

Proper Stride

Proper Stride

The Electronic Glove – This is a very simple teaching aid that contains a little circuit that will show you exactly where you are releasing the shoe. When you grip the shoe with finger and thumb, a circuit is formed that turns on a 12V LED. It stays on until you release the shoe. The concept is, to tell you where you are releasing the shoe, both vertically and horizontally. With this information I can plot the flight of my shoe from start to finish. I’ll discuss the program that calculates this plot a little later. A friend of mine, an electrical engineer, was kind enough to change the circuit so that the LED went ON when released, instead of OFF. I’m also wanting to add a little vibrator and sound generator to give me instant feedback. I am also considering adding a little circuit to my Swing Arc platform to alert me when the shoe reaches the proper release point. By setting this circuit at the correct release point, I can determine if I’m releasing early or late. Two photos below show the state of the glove while ON and OFF.

ON -- In Mid Swing

ON -- In Mid Swing

OFF -- Shoe Released

OFF -- Shoe Released

Pendulum Man – This is what started my search. I had noticed that when I addressed the stake, i.e., brought the shoe to eye level and sighted directly at the stake, it didn’t look like the shoe was over the “line of flight.” I wanted to visually ascertain what I should see when the shoe became part of the pendulum. So, I created what I referred to as “Pendulum Man,” for the sake of describing what I wanted it to represent. With a few pieces of PVC I built a representation of me. It was to represent my height, shoulder width, head location and arm length, with horseshoe attached. After I completed it, I set it down on my 40 foot approach with the arm at 90 degrees, directly over the line of flight, and, the center of gravity of the shoe pointing directly at the stake (first picture below). Note that the bottom of the photo shows the line of flight string, directly below the arm and the shoe aligned with an extension of the stake in the pit.
The second photo is photographed from where my head and eyes would be. To my amazement the visual alignment was way to the right. It was at this point that I decided I needed an indicator to show me where the shoe should be, when addressing the stake. Thus, the Plumb, pointing straight down at the line of flight and far enough forward to center the shoe at arms length, below the Plumb. I quickly realized that bringing the shoe up to eye level and aligning it with the stake could not possibly be part of the pendulum swing. As I mentioned before, that little piece of string was the genesis of the development of my swing and this blog. Below is a photo of “Pendulum Man” in the resting state.

Pendulum Man (resting)

Pendulum Man (resting)

Arm on line of flight

Arm on line of flight

Visual location of the shoe

Visual location of the shoe

Release and Height Frame– I decided I needed an accurate method of determining the release point, i.e., point downrange and height and the actual location of the highpoint and location downrange. I purchased enough PVC and multi-colored twine to create a checkerboard pattern in 3 inch increments in a 5 x 10 foot frame.

Location Frame

Location Frame

Email me if you have any questions or comments. 
Continue to Part 6
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The Search for My Perfect Swing — Part 4

Constants

It is my belief that anyone using proper technique from 30 feet should be able to throw a ringer every time. The key, of course, is proper technique.  It has been my goal during the past year to try to determine exactly — “What is proper technique?”  I decided to see if my software development background could be used to review each aspect of the pitching of a horseshoe.  So, I began to break down each phase of the pitching of a horseshoe.  Any good programmer will try to convert every variable to a constant, where possible.  So, it is this guiding concept that dictates “Horseshoes My Way.” A constant is a position that can be taken accurately and reached repeatedly. Further, if you stray, you will be able to spot the error immediately.

Constant 1 – The Pendulum Swing.  I decided to base my swing on the pendulum.  It is a very simple concept, but, very accurate.  The simple definition of a Pendulum is “A rigid body free to swing on a horizontal axis under the influence of gravity.”  Unfortunately, gravity alone, in this case, will not launch a horseshoe far enough to get to the stake.  However, it was fairly easy to monitor the arm swing as if it were the “rigid body” and the shoulder as the hub.  Everything from this point on, is based on the shoulder as the hub, the arm as the shaft and the horseshoe as the weight. A pendulum has four constants; 1) an exact swing axis, 2) a constant swing speed, 3) a stop point on the forward swing, and 4) a stop point on the backswing. Visualize the pendulum in a grandfather clock as your goal. It is also possible to use a simple metronome to monitor the speed.

Constant 2Center of Gravity. Each horseshoe has only one “Center of Gravity.” Kenny Wolf has done an excellent job of describing how to determine the center of gravity.  See URL http://www.kennywolf.com/shoemath.htm . It is the center of gravity that needs to be pitched at the stake. 

Constant 3Line of Flight. This is a line that is a continuation of the pendulum swing. To create this line of flight — tie a cord to the base of the stake and temporarily terminate the cord to the right and behind the approach.  Next, take your normal stance on the approach, take your normal grip on your horseshoe, extend the arm straight downward (no bend in the elbow) and drop the shoe.  Mark the location of where the center of gravity is, when the shoe hits the ground.  Pull the cord taut exactly over the spot.  Next mark the location of where the cord passes over the front of the pit. Place an eyelet, nail, etc. at that spot and move the cord from the stake to the nail.  Now, pull the cord taut behind the approach making sure the cord passes over the center of gravity spot.  Every horseshoe thrown should follow this “Line of Flight.”

Constant 4Continuation of the Line of Flight.  There are two points that insure the arm swing is following the line of flight.  A point at the end of the backswing and a point at the end of the forward swing. When you swing your arm back, there will be a point where it stops.  This is your backswing constant.  The endpoint of the forward swing is a little more difficult to find.  So, we’ll add a helping aid.  To create the forward swing endpoint.  Drop a plumb directly over the line of flight at a height of the top of your head or a few inches higher. Place the plumb so that some part of your hand in line with the center of gravity touches the plumb at the top of your forward swing.  To prove that this is a valid point — stand at the end of the approach and drop your arm straight down with the horseshoe directly over the line of flight cord. Simply swing your arm up and touch the plumb.  On the way up release the shoe.  The shoe should land directly over the line of flight cord downrange.  Try again and this time add additional effort, hit the plumb and make sure the shoe lands further down the line of flight cord.  Test this further by standing at the foul line, swing the shoe up and touch the plumb and hold it’s position.  Now, start your back swing to your backswing endpoint and swing forward, release the shoe and touch the plumb. Where did the shoe land?  If the shoe landed left of the line of flight, you swung your arm outside of the line of flight on the backswing.  If the shoe lands right, then you swung your arm too far inside.  If you have continual problems with the backswing, hang down something very light, such as a light washer, that will touch your arm/hand lightly to signal the correct backswing location and height.

Constant 5 – Addressing the Stake. This constant has to do with standardizing your shoe location at the start of your downswing. When you begin the swing, swing the shoe up, parallel to the ground (90 degrees). You will note that when your shoe is at eye level and directly below the plumb, visually the shoe is to the right of the stake.  Make note of where the shoe is pointing.   If you want your swing to swing along the line of flight (pendulum swing) the shoe must be pointing at this right location at the start of the swing. NOTE: You cannot, repeat, cannot swing along the line of flight if you bring the shoe in front of your face, sighting it to the stake.  The beginning of the backswing will be “OFF THE LINE OF FLIGHT.”  The only way to put it back on line is to make a simulated figure 8 movement.  To prove this point, take a stepladder and place it over the line of flight, bring the shoe up to the plumb and lay it down on one rung of the ladder.  Now step back and sight down the line of flight to verify that the center of gravity of the shoe is resting directly above the line of flight.  Now return to the approach and check where the shoe is visually pointing. To assist the starting of the backswing from the address position, you may find it helps if you simply allow the shoe to fall on it’s own, from there continue on to the backswing.

Constant 6The Stride.  None! If you are a 30 foot pitcher there should be no reason to stride. Striding adds an additional variable to factor in.  I place my right foot on the front edge and right corner of the foul line. I then position my left foot behind the right and raise my heel so that my body tilts slightly to the right. Change 3 It gives you more room to allow the shoe to pass the leg without interference and insures that your tricep is not bumping against the lat muscle. If you are trying to duplicate the pendulum swing, nothing moves except the arm.  Unfortunately, it is normal to try to add a little body to the pitch.  Keep in mind where the head goes, so goes the body. Try to keep the head perfectly still throughout the swing.  The late Carl F. Steinfeldt believed that 15% of misses were caused by approach problems.

40 footers– it is unlikely that you will be able to throw a shoe 40 feet by standing at the foul line. So, take your normal starting position and when you stride forward make sure you step parallel to the line of flight.  Don’t make the mistake of striding at the stake.  You are trying to move your hub (shoulder) along the line of flight.  I created a board that forced me to stride properly.  At first I painted a stripe on the approach directly parallel to the line of flight, but, kept noticing that my left foot tended to move right.  So, I placed a board on the approach with a divider so my feet straddled the divider. The divider was parallel to the line of flight which meant that I was stepping to the left of the stake, but, my hub was in line with the stake. I stepped forward with my left foot during the backswing and followed my left foot with my right ending up with both feet side by side at the foul line.

Constant 7Arm Rotation. None!. Many lifetime horseshoe pitchers believe that the proper handling of the horseshoe during the backswing is to turn the shoe so that it is perpendicular to the ground when it passes the leg. You then begin to rotate the arm after the shoe passes the leg on the forward swing. Well, we don’t have a lifetime to develop this move.  So, when you address the stake over the line of flight, keep the shoe in exactly the same position until it is released. Let your grip on the shoe dictate the flight characteristics of the shoe.  You can flip or turn a shoe without trying to rotate the arm. 

Constant 8Release Point. As you practice you will discover that once in a while the shoe flies perfectly, right rotation, right release, right distance.  How can we determine that release point and mimic it each time? First thing is to find out where that point is.  To discover my correct release point I developed a glove that turns OFF a bright red LED when the shoe is released. It’s a fairly simple circuit and contains a 9V battery, 12V bright red LED and two bare wires mounted on the finger and thumb. When you grip the shoe with the finger and thumb the light goes ON and when released the light goes OFF.  Create a poster board with height and distance markings.  Video the release until you find the one that gives you a perfect ringer.  Note the height and distance from the foul line.  This will be your preferred release point.  We’ll use this information for plotting the shoe flight.

Constant 9High Point of Flight. When you are testing for your proper release point you should also be checking the highpoint of your perfect ringer.  This is easily monitored.  Purchase two 1″ x 10ft. PVC pipes or equivalent.  Put one PVC pipe close to the foul line and the other about 1/2 way downrange.  Stretch string from pole to pole about 6″ apart. As you video your release, be far enough back to get your release and highpoint.  The experts claim that your highpoint should be about 2 feet over your height.  I don’t necessarily agree with that generalization. Your optimum highpoint might be lower. Some advise putting a string across the flight path and try to throw over the string. Unfortunately, visually you cannot determine if the horseshoe was going up or coming down when going over the string. With the correct highpoint found you can then calculate the shoe flight which includes the time of flight, initial launch angle and initial launch speed.

Continue to Part 5
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