If the shoulders rotate more around the spine in putting... rather than ROCK up and down... the head will stay still... according to Mr. Utley. I tried this and found it to be pretty true. This goes along with the ARC stroke, or putting on an INCLINED PLANE.
Putting UP AND DOWN THE LINE tends to promote a rocking of the shoulders up and down... and often the head goes backwards on the down stroke. I have seen some very good players do it this way, however. Loren Roberts putts up and down the line.
I found it interesting that Stan stresses the shoulders working around the spine and the spine is tilted at address and maintained throughout the stroke.
What do you think about having the eyes and ears level to the ground in putting? It has to be hard anatomically, but sound mechanically.
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Golf can never be considered an enigma. ~HK
The degree to which the upper spine is bent from horizontal will create a plane angle. Meaning, if my thorasic vertebrate (upper shoulders) set 14 degrees from horizontal my plane angle will be 76 degrees or 14 degrees from vertical.
From here if the shoulders move around the spine (which a broad definition of what is happening) the sweet spot of the putter will travel back-up-in, on the 76 degree plane angle without the sweet spot being moved from plane. The same will happen on the way through.
Hence my belief in the left shoulder plane angle from Mr. Kelley.
But remember, 7-13. The shoulders should be monitored.
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