[EdZ]

This isn't just a way of measuring wristcock - this ties in many different variables as my mathematical equation just shows.

Perhaps you have lost me, but to clarify, "Jen's" plane is simply the angle of the left wedge/wristcock relative to 'the' plane?

So taking this a step farther, you can define the ideal angles of the two wedges to Jen's plane by combination of the angles at which the wedges intersect 'the' plane, assuming a 90 degree relationship between the wedges.

Depending on lie angle/length of club/golfer, one would assume that this would ideally be 45 degrees in a motion using the turned shoulder plane, such that the path/plane of the pressure points would be rather verticle to the ground, while still accounting for the #3 accumulator angle and lie of the club and an efficient combination of force vectors.