[lagster]

I think you have some interesting points. One can view the Putting stroke as a mini- golf stroke, which it really is.

Probably most players use a form of ANGLED HINGING when putting. A true Horizontal Hinge Action would be tough, but the FEELING of IT could probably be gotten by some, especially the ARC type putters.

Putting on an ARC is actually putting on an INCLINED PLANE. Straight back and through putting, would be off the inclined plane, and would be like putting against a baseboard, but many do use some version of this(Loren Roberts).

Bobby Locke, moved his body when he putted... so he technically, probably had a PIVOT when he putted. He may have been the best ever.

If someone today started making everything, and winning tournaments while putting with a little PIVOT, I'm sure we would see others doing it also. Twenty years ago or less, we would not have dreamed that we would see tour players using belly putters, long putters, claw grips, and almost anything that will work. Why not a little PIVOT?