I am always very confused about the plane and zero shifting.
If I address with the right forearm on plane with the shaft, with bent elbow, then just bend and fan the right elbow up and then just pushing down with #1 pressure point, am I zero shift with turned shoulder plan (since is on plane at address)? or am I at the elbow plane? Appreciate your help.
Elbow Plane. If the Right Forearm is On the Swing Plane at Release and In-Line with the Clubshaft, then you are swinging on the Elbow Plane.
All Swinging should have an On-Plane Forearm at Impact (Right Forearm is On the Swing Plane at Impact). At Release, the Right Forearm should at least be On Plane, at 90 degrees, to the Left Arm Wedge; Flying Wedge geometry.