[Bagger Lance]

i feel like some of the originial issues have not been addressed. what role does the right shoulder and axis tilt play in an elbow plane swing, where do they go?, where do they point? what should they do if they are not guiding the shaft down plane as homer says right shoulder motion must not be haphazard.

Right shoulder points at the plane line AND the right forearm points at the plane line (just different planes). The difference between TSP and EP is the hands are not on the same plane as the right shoulder, thereby making it somewhat "hazardous".
Any shifting is hazardous for this reason.

Axis tilt in a pivot controlled hands procedure is critical, whereas its not quite as critical in a hands controlled pivot. Keep in mind with PCH you aren't really monitoring your hands, and doing very little tracing if any.