Thrust is Physics. Example, think of a Straight Line Delivery Path of the Hands which extends beyond the Plane line, but the motion, Geometry, as it goes around the pulley of the Endless Belt creates an Arc of Approach that is on line.
Monitor your Plane Line or your Arc of Approach and you are monitor Geometry, but monitor Your Delivery Path and you monitor both, because the Thrust is also on Plane.
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.