[stinkler]

Daryl, slow motion might be easier to see the deceleration, at that speed pretty hard to see whats going on though it for sure looks like a fine swing!

I think here we need to be careful about terminology? Bio says the hands decelerate, you say there is constant motion. Well both can be correct? A car can slow down at an intersection but not stop, constant motion with deceleration?

We might be arriving at feel not real?

Feel; constant motion, all parts moving through to finish.

Real; conservation momentum, hips fire, torso, arms etc in a 'kinetic' link of energy/acceleration being transferred to the ball.

I've sat a looked at much of Bio's data from many great swings, the measurements (speed of hips, arms, club butt, club head, top speed, speed at impact, angles of spine and more!) are there in black and white (well many colors really)

I believe this stuff can work wonders in conjunction with the mechanics of TGM, they need not be mutually exclusive and I don't believe Bio thinks they are either. I have learned heaps from TGM and now with Bio I have a chance to apply the mechanics to an engine that is firing on all cylinders! (not a sales pitch )

Still, I'm a learner and loving this thread, thanks.