Back to the topic at hand....
Quick Review
The TOP 10 Things you can not argue with in the Release Thread
1. All force "normal" to the club (toward the golfer) at impact.
2. Tour players de-loft the club much more than they hit down (in degrees).
3. It is mathematically optimal for the hands to reach low point prior to the clubhead.
4. 70% of the work done by the body only moves the body.
5. The clubshaft bends toe up and slightly lead at start down, quickly recovers, goes into lag as the club nearly last parallel pre-impact, and is in tow down lead at impact.
6. The hands and clubhead move out away from the golfer in the early downswing.
7. Just holding on to the club and pulling with the body and arms will produce no more than 70% potential clubhead speed.
8. There is absolutely nothing gained by having the clubhead accelerating at impact or have the club stay "up the left arm" providing identical D-Plane vectors at impact.
9. The hands do not move down the same plane as the clubhead.
10. There is point in the mid-hands area that makes a path that dictates many of the above, and provides a center of rotation of right hand/left hand bending and arching.
Now, go make up a way to teach.
Brian, if all force is normal at impact and shaft deflection has the head toe down and leading at impact, how are tour players de-lofting the club?
I have long suspected this was the case given the crazy long distance and comparatively low ball flight reported on their irons. I'm having trouble, however, visualizing how they de-loft the club given this current model.
Great thread.