[BerntR]

Why is the Left Shoulder considered the center of the Golf Swing orbit and not the spine?

Since our upper body rotates around the spine, I would think that it plays a larger role in the low point of the swing (as opposed to the left shoulder socket).

I'm a newbie to the TGM and have only just started to learn its fundamentals. I'm sure this question has already been answered and is likely already addressed in Homer's book. References would be greatly appreciated.

Thanks in advance,
Chris

Good question. I think those illustrations are misleading and I don't agree that the right shoulder is the swing center unless you have a pivot stall before impact and just let the arms and club fly past.

IMO, these illustrations also tend to create confusion with regards to the role of the left shoulder as a power source through impact. The left shoulder is forward of the swing center so any pulling from it will also produce a forward force, and not just a centripetal force.