[Yoda]

Wouldn't it be easier to visualize a right arm/wrist karate chop? That way the right arm is used for clubhead control and the left hand for clubface control. Clear and distinctly different roles. Another aspect of the left hand karate chop that confused me was that it placed clubhead control onto the wrong arm. Think about the bent back right wrist doing a karate chop motion with the right palm face up to the inclined plane.

The Swinger Loads the Left Wrist and Triggers centrifugually the Sequenced Release of the Left Wrist and Hand. Hence the 'Left Hand Karate Chop' (Palm down to the Plane) followed by the Left Hand Swivel.

The Hitter Loads the Right Elbow and Triggers muscularly the Simultaneous Release of the Left Wrist and Hand. Hence, there is no Left Hand Karate Chop Motion nor any Left Hand Swivel. Instead, driven by the straightening Right Arm, the Left Wrist Uncocks as the Left Hand Rolls. In this manner, the Left Palm immediately begins its return from its On Plane alignment at the Top to its Vertical alignment at Impact.