[Daryl]

Couple of comments:
1 I do not believe the "practical range" of fore and aft ball positioning for any given club is "wide" enough to trigger these other concerns.

2. please examine Hogan's atance/ball position drawings-page 125, Five Lessons. I can't copy the drawing.
Pay particular attention to:
He moves the ball back for each club by narrowing his stance and opening his stance.
He effectivly rotates his plane line and maintains his target line when he op-ens his stance.


Sugestion - I believe HK has included this info- maybe in bits and pieces- As we find those bits and pieces we should include them here.
HB

Does the ball move back because he narrows his Stance?

Did the Ball Move aft of Low-Point? Low Point is adjustable.

Narrowing the stance with his method, will cause the right shoulder to move Forward. Its the Right Forearm Angle of Approach. Longer Clubs cause the Right Shoulder to be rotated more at Impact relative to shorter clubs. So, using his method, the release point and aiming point is similar for different length clubs. Notice that at Impact, shorter clubs have Right Forearms that are more Vertical. Therefore, the Right Forearm Wedge is becoming in-line at a much faster rate.

Opening and closing your stance will affect Hip Action. It doesn't cause a plane line rotation unless you align your shoulders to your stance after the change. Notice that Hogan used a Closed Stance while Driving but his shoulders and Swing remained squarish to the Target.