The plane of the left wristcock motion (same as acc no.3 plane) per the flying wedges is a left arm plane. The sweetspot stays in this plane. The left arm nor the left flying wedge sits flat on the inclined plane. It comes from above the inclined plane.
When the hand is not turned towards the plane (which I thought would make the relationships pretty clear...) and is anywhere else - the LCOG will lay on the inclined plane on the angle that accumulator 3 plane makes as it passes through it. The wristcock no of degrees can then be determined by the angle between that line of intersection just described and the angle it makes with relation to Jens plane.
I get the "what your saying" part of it, but am still missing the "why it's important" part, unlelss the important part is to turn this into a mathematical relationship for a correct dynamic model. Otherwise, it seems like a pretty complicated way to measure wrist cock. In an ordinary golfer, why wouldn't you just measure the angle of the wrist cock by comparing the shaft angle to the left forearm?
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