quote
'Pecky987
I think you are wrong. Most good golfers have slight rightwards tilt of the spine at address. However, if they pivot correctly in the backswing, then the right buttocks must go backwards and slightly towards the target - as can be seen in this photo of Tiger Woods.'
Jeff
i may not have made myself clear. at ADDRESS there is a spine tilt AWAY from the target. rightwards for a right hander. bcos of the right hand being lower. bcos the spine goes from the head to the cocsis(tailbone) this means there must be an overall tilt away from the target. most people do not do this completly. most golfer, including tour pros, have a slight tilt.
as the player turns around his spine, which for most player is fairly vertical, to remain some-what centred, and not move off the ball (im not promoting stack and tilt here), the rear end is forced towards the target. this is the right hip clearing to allow the arms full acces to the backswing in order to make a complete shoulder turn (thnk you harvey penick

). if there is proper tilt, like i have talked about, it will APPEAR to not move closer, IF there is more than just minimal tilt.
from here, the reason it must move closer to the target, is at impact, the tailbone must be closer to the target than the head, this can only be achieved with proper tilt at address, and at the top.
i do believe it must be nearer the target at the top then at address, but how much is dependent on how much tilt is at address. if quite a vertical spine angle, either you can have a very upright backswing, a la fred couples, aaron baddely(?), and try to move to the tilted position at impact, and get a bad back. or you can tilt more away from the ball in the backswing, i.e goin from say 5/6 degrees of tilt away at address, to 10/11 or more at top and at impact.
hope point was made more clearly this time. if not shawn clement will make it very clearly
http://youtube.com/watch?v=nI3i936JRd0