[EdZ]

E . . . What would be your description of INSTANT HIP ACCELERATION?

This is one that continues to elude Bucket.

What does it look/feel like? I think Hogan did it but are their any current players that would be posterboys?

Hogan is an excellent example, Sergio too.

Easier to see in players who use a lot of float loading and/or snap loading (Nicklaus).

Imagine a whip motion - the root of 'instant' is that there is never any 'slack' in the whip - simply the change of direction causing the 'snap' in effectively two places - at loading/transition - and at both arms straight.

Cracking a whip going back, and cracking it going through - with the 'instant' startdown being the way you do it. If you were to pause at the top, you couldn't 'crack' the whip (load) on the backswing.

A hitter on the other hand, can get away with a pause at the top, because they don't need to build CF going back, they can simply use muscular force. In fact, it can be quite helpful for a hitter to literally stop at the top, to confirm delivery paths/lines, but a swinger doing the same would be in big trouble (no CF to provide power or square up the face).