6-B-1-D Extensor Action

[Yoda]

Is Extensor Action the same for both Hitting (Angle of Approach) and Swinging (Arc of Approach)?

To explain, on the Backswing, for Arc of Approach, my right elbow bends as a result of the Checkrein Action of the left arm. But for Angle of Approach, it seems it needs to bend earlier (before the Checkrein Action kicks in) in order to follow the Closed Plane of 10-5-E. Is this correct?

Hitting or Swinging, Extensor Action (6-B-1-D) is applied at Impact Fix (8-2) and is maintained to the end of the Follow Through (8-9). After the 'Both Arms Straight' position, the Left Arm folds (6-A-4) and Extensor Action can no longer exist. The application of Extensor Action is constant regardless of the Clubhead Delivery Line (2-J-3):

1. The True Geometric Plane Line;

2. Its Visual Equivalent (Arc of Approach); or

3. Its Geometric Equivalent (Angle of Approach).