Body Flex

Alright.

I took screenshots of those *flex* shots so we can study them closer:

Hmmmm...

Okay, so why specifically do we have to have those specific flexibilities?

I'd really like to know but I can't afford to pay the exorbitant rates this guy charges.

But I would like to try to take these measurements of myself to see how far I fall short of his ideals.

I can tell you right now, that I can't twist my neck like that on account of the major back/neck injury I suffered in 1999. And in that clip above, he briefly remarks that inflexibility in the neck prevents a golfer from keeping their head still as the body turns on the backswing.

So might that explain why once in a while I interrupt decent rounds of golf with shanks and whatnot?

I'm very curious.