[Yoda]

. . . it promotes the club to go left after impact . . .

Thanks, Burley.

I first used surgical tubing to demonstrate both Extensor Action and the Delivery Path of Thrust at my 'comeback' school at the PGA TOUR Academy in May 2004. I am delighted to see that you and others are now thinking along these lines.

Now for one picky (but very important) point, which I make only because of the extreme emphasis much modern instruction places on 'going left'. I daily proclaim that the very essence of the Golf Stroke is rotation and its resultant circular motion of the Clubhead. However . . .

The Inclined Plane of Motion (and its Baseline) must also be respected. The orbiting Clubhead 'goes left' only after Low Point (and not before). Since a normal 'Up Plane' Ball Location demands that Impact precede Low Point, then the Clubhead (in its circular orbit) must continue to move right AFTER Impact (before it moves left AFTER Low Point). Otherwise, there can only be an 'under' Plane Stroke.

In my experience, most handicap golfers have no problem with 'going left' after Impact. In fact, they are so good at 'going left' that they do it from the Top and through the Start Down, Downstroke and Release.

And that is the very reason they remain high handicappers.