[bioengine]

Thanks I look forward to your reply . . . . I don't disagree with the angles piece necessarily . . . However, I think if you look at swings like Snead vs. Hogan vs. Nelson vs. Jack vs. Palmer vs. Buck they all had very dynamic but very different pivots and sequencing . . . much to do with different ball flights . . . the pivot can have MAJOR implications on launch conditions via differences in the angle of approach and angle of attack.













That being said there are probably common demoninators as well . . .

Good discussion . . . thanks for putting the time in.

Very good . . . . so focusing on the similarities exclusive of geometry (which I think is significant at least to the curvature of the ball) . . . .

I highlighted some of what you mentioned in terms of similarities . . .

1. When you say the hips and shoulders are perpendicular to the spine . . . .what do you mean there?

2. As far as the hips and shoulders, was the center of the hip turn in front of the center of the shoulder turn? If so how much?

3. When you say the hips and shoulders were square . . . you mean open the same amount?

4. Minimal lateral bending . . . is that bending to the right with the spine?

5. Could you elaborate on muscle loading?

As to geometry, to me the geometry differences are very significant maybe not interms of generating speed BUT almost everything interms of determing trajectory, start line and curvature. If you consider the differences in grip type and where the arms of the players I posted are in relation to the ball the release motions are vastly different. These players all hit vastly different "stock" shots as well as a result of the different launch conditions produced by their respective geometry.

No question the ball responds to speed generated by the similarities you mentioned that you have studied. But it also responds to the particular face path angle of attack, angle of approach and ascent produced by the different geometries.

But I'm very interested in similarities that you have found.

Yeah ball flight will be different everyone compresses the ball different so they are going to create different spin rates and ball flights. Another factor is also club fitting kick points,shaft flex and lofts etc.

Q1 Ok picture this T the horizontal line represents the shoulders and vertical live represents the spine.
For the hips turn the T up side down again horizontal line are hips and vertical are spine. Hips and shoulder are perpendicular to the spine.

Q2 Hips aren't in front at all at impact. They are square to each other at impact. On 2D video cause sometimes true impact is in between frames. 2D can't pick this up at all. You need to be able to measure ball collision and body rotational speeds to gather this information. But when measured this is what occurs. Down side of 2d video can't measure speed or movement patterns.

Q3 Yeah that's right on good player or people who have good movement patterns between 20 to 25 degrees open left of target line. The hips and shoulders are open the same (square) belt buckle and sternum are in line.

Q4 Minimal lateral bending is your tilt or bending to right at impact, very important this stabilizes at impact doesn't continue to lateral bend. The straighter spine better the rotation and better transfer of speed to next body segment.

Q5 Muscular loading is loading and firing muscles groups in the golf swing. There are two things which drive 6-M-1
Conservation of momentum and muscular loading. Muscular loading power of fires conservation of momentum in each body segment.

We measure the muscles loading and firing in the golfswing.
We measure how effectively you loaded them and how well you fire your muscles.We look at if you loaded and fired your muscle groups in the right sequence and if you fired them at the right time.

We teach people how to train there body to create conservation of momentum and how to load and fire their muscles. through training they learn how to do this naturally when they play..

myself I have 6-M-1, conservation of momentum, I know how to load and fire my muscles right. I can have my hips and shoulders square at impact, my hips and shoulders are perpendicular to my spine. This why my back doesn't hurt.
I call compress the golf ball pretty good and very well known for my striking abilities.