[12 piece bucket]

I'm a newb with a stationary head question. Snead is mentioned many times in the thread, one of his traits is the so-called "squat" on the downswing. The "squat" move is now highlighted in Tiger swing analyses.
I wonder how the so-called squat doesn't lower the head vertically?
I accept that a head bob or sway is counterproductive, and would like some informed opinion.
Thanks

1. That squat move shows up in most players who can really bust the ball . . . forces DOWN into the ground and then push UP off the ground . . . like grabbing a rebound . . .

2. That move also helps you get the club coming down the face of the plane delaying the hip rotation

3. Eldrick may accentuate this move due to his set up. He sets up with his neck and back all straight and probably does this move some so he can get the ball focused with his eyes when he makes his down stroke.