Thanks for the photo and discussion. Hopefully my measurements are close enough and I am not being too precise but here are some observations of the photo positions and a question. Would appreciate your comments or clarification from a zero shift perspective.
1 (O)-A line drawn through the two hand positions to the ground does not intersect the plane line.
2 (O)-The hands at address are below the TSP.
3 (O)-Considering the sweet spot plane and the address shaft plane both pass through the "hands/PP3" and assuming the right forearm rests on the appropriate plane, that plane is flatter than the TSP. Or, the right shoulder turns to a point that is not on the "preselected plane" (ref. 10-13-D).
4(?)-In the downstroke, do the hands return to the address position or move down the TSP?