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primary lever length at impact

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  #1  
Old 04-27-2012, 05:54 PM
whip whip is offline
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Originally Posted by MizunoJoe View Post
When snap releasing, the hands slow precipitously in the release interval. They also slow in a sweep release, but not as dramatically. Constant hand speed exists only in the endless belt model.
remember the hands themselves are going around the pulley also, they ain't slowing down Joe
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  #2  
Old 04-27-2012, 07:12 PM
MizunoJoe MizunoJoe is offline
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Originally Posted by whip View Post
remember the hands themselves are going around the pulley also, they ain't slowing down Joe
Too bad HB's Physics article didn't include hand speed, but I think you can extrapolate it from the pro and am1 lead arm graph(blue), which decelerates rapidly through release. It would be hard for the hands to continue at a constant speed while the arm to which they're attached, is decelerating. The reason is that as the left wrist uncocks, the left arm is dragging an ever heavier load as the shaft and left arm head toward the in-line condition. Note that amateur 2 actually speeds up his left arm during release, which seems like a good idea(who here hasn't tried it, including me some time ago! ), but is not.
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Old 04-28-2012, 08:45 AM
HungryBear HungryBear is offline
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A little TGM on the "physics"
I would lay a little TGM on the physics:

http://www.mytpi.com/images/pdfs/Kin...nDownswing.pdf

Useing the pro model only. ( who knows what the amatures are doing?)

1. Nice RHYTHM.
2. Assuming- a flat left hand and bent right wrist with on plane forearm- the HANDS move with and seen as part of the club, not the arm.
3. See the geometric release of #2 (THE VELOCITY ACCUMULATOR), as the true velocity accumulator
4. See #3 (TRANSFER) by comparing the arm rotational velocity to the club rotational velocity and noting the overtaking effect of #3 accumulator


Just my observation

HB

Last edited by HungryBear : 04-28-2012 at 08:48 AM.
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  #4  
Old 04-28-2012, 01:58 PM
whip whip is offline
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Originally Posted by MizunoJoe View Post
Too bad HB's Physics article didn't include hand speed, but I think you can extrapolate it from the pro and am1 lead arm graph(blue), which decelerates rapidly through release. It would be hard for the hands to continue at a constant speed while the arm to which they're attached, is decelerating. The reason is that as the left wrist uncocks, the left arm is dragging an ever heavier load as the shaft and left arm head toward the in-line condition. Note that amateur 2 actually speeds up his left arm during release, which seems like a good idea(who here hasn't tried it, including me some time ago! ), but is not.
Does any of this data show that you can't have a constant handspeed? No

Last edited by whip : 04-28-2012 at 02:00 PM.
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  #5  
Old 04-28-2012, 04:03 PM
MizunoJoe MizunoJoe is offline
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Originally Posted by whip View Post
Does any of this data show that you can't have a constant handspeed? No
In fact, the Am #2 data show that you can speed them up, but you shouldn't! I'm willing to bet he's a Switter. Having dumped his accumulators too soon, he then stifles CF by firing his right tricep. The point is that it requires hand/arm manipulation to prevent their slowing in the uncocking phase.

The one most important thing which jumps out from the study is that good players delay their accumulator dumps, while ordinary ones don't. If you want maximum club head speed, you pivot lag #4, and then take #2 deep down plane before releasing, or better yet, increase it with down-cocking. The better you lag #2, the more the hands will slow down in the free-wheeling stage, provided you don't interfere.
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  #6  
Old 04-28-2012, 05:14 PM
whip whip is offline
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Originally Posted by MizunoJoe View Post
In fact, the Am #2 data show that you can speed them up, but you shouldn't! I'm willing to bet he's a Switter. Having dumped his accumulators too soon, he then stifles CF by firing his right tricep. The point is that it requires hand/arm manipulation to prevent their slowing in the uncocking phase.

The one most important thing which jumps out from the study is that good players delay their accumulator dumps, while ordinary ones don't. If you want maximum club head speed, you pivot lag #4, and then take #2 deep down plane before releasing, or better yet, increase it with down-cocking. The better you lag #2, the more the hands will slow down in the free-wheeling stage, provided you don't interfere.
The data does not conclude that at all, that is your own seems as if idea. The hands cancertainly go a constant speed through release and all players should strive for it. Set the initial thrust so the hands can move at a controlled speed and uncock and roll and release

Last edited by whip : 04-28-2012 at 05:20 PM.
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  #7  
Old 04-28-2012, 06:42 PM
MizunoJoe MizunoJoe is offline
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Originally Posted by whip View Post
The data does not conclude that
You're not reading the data correctly.

Originally Posted by whip View Post
The hands can certainly go a constant speed through release and all players should strive for it.
All players should strive for lagged accumulators and not think about the endless belt model.

Originally Posted by whip View Post
Set the initial thrust so the hands can move at a controlled speed.
The player should use the Thorax to drive as heavy a pressure in PP#3 as he can muster at the ball, and the hands will move at the required speed, as long as he doesn't try to add.
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  #8  
Old 04-28-2012, 07:34 PM
whip whip is offline
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please explain the data and show me what it concludes or how it proves your point. the endless belt is a great way to understand the release and I know greg smith and I have discussed it many times during practice. wheres the data, what supports your point? what point do you have?

Strive for a continuous, smooth, constant hand speed throughout for all shots, from tee to green and I promise, you will be a better golfer. this is practically half the mechanics for me along with extensor, constant hand speed and extensor ARE BIG DEALS

Last edited by whip : 04-29-2012 at 03:01 PM.
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