I am a little foggy about 1-L-15. Can anyone explain how the Thrust continues downplane once the club passes Low Point and starts moving up and in?
The Right Elbow is still bent at Low Point. Consequently, the Right Forearm continues to Drive (Muscularly / Hitting) or be Driven (Centrifugally / Swinging) toward the Plane Line until it is fully straight.
For the record, this is one of my favorite 1-L axioms!