hi Brian
i think it depends on you type of swing, some types are all about shoulder turn and also use of the hand at impact and hips don't turn as much, i think this is good for the player that comes into the ball with the club face open and then square and then closed just past impact, its more swing around your fixed spine .
with the player that tries to play more club face square to square through impact then they seem to have more hip uses and more hip sway towards the target and they use there legs more in the swing too, there head stays in the same place but the lower spine slid a few inches to target.
i think it like the one plane golfer and the two plane golfer and you cant use bits of both swings as your game falls to bits.
good links to Brian
cheers
bill

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