hcw,
Do you start your putting stroke with your feet, legs, hips, whatever? No; because there is no need for body movement in order to make a putt and that is because the arms can do their work without such assistance.
The upshot of all this is that the body reacts only to allow the arms to get to where they need to go on the backswing - the body neither generates or stores power in this process.
Same for the downswing, the body reacts in response to the downward movement of the club by the arms, providing resistance to, and support for, the force generated by the arms as they propel the club.
Any movement of the body that is perceived to precede the downward swing of the arms (as opposed to being coincident with it) is merely a positional, path clearing, procedure that facilitates the application of downward force rather than causes it.
burner, please.
the discussion was about the most powerful swings, not putting, but if i needed to add some "OOMPH" to a really long putt, i'd move the hips...on the rest i'll defer to the yellow book where both 12-1-0 and 12-2-0 list "Delayed Hip Action" (10-15-B) which says:
"The Hips then take over and lead and power the Downstroke Shoulder Turn."
and
"...set the stage perfectly for the Hips to initiate the Downstroke Shouder Acceleration."
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