[12 piece bucket]

Monitoring the Plane Line or Arc of Approach being Tracing, Geometry. Monitoring Delivery Path of the Hands, Thrust, Aiming Point, Physics. Is that what you mean? Lynns tracing vs throwing a stone, straight line at the aiming point. Both achieving the same Delivery Line of the clubhead.

Im still confused about Thrust though. If it is on plane , straight line towards the Aiming Point for Arc of Approach, is it "cross line" in that it passes the plane line, or just points at the plane line? Words fail me again.

I'd submit that cross line TO POINT . . Assuming the hands are leading the clubhead . . .and they travel in an arc they are going to be working back up and in on plane while the club is still working down out and forward . . .

Look a the pic D posted . . . Hogan's hands have "disappeared" from the pic and hidden by his body but the club is still "out" . . . Hogan "planed" the club better than anybody ever has IMO. Beautiful stuff . . . keep in mind he hit all 18 greens and 14 fairways in that Shell deal.