[MizunoJoe]

That still doesn't answer my question - does the Right Arm actually pull the shaft longitudinally? If so, how can the Right Arm pull any way other than by thrusting the Right Elbow in front of the left hip? Tom does not do that, so how can his Right Elbow replace his Left Shoulder as the Swing Center, when it is so far back?

Here's the problem - if the Right Arm is extended by the Right Tricep, that movement uncocks the Left Wrist and so is not a Swing. The only way I can see the Right Arm pulling the shaft is by thrusting it in front of the right hip with that thrust providing the pull. The Right Tricep remains passive. The Right Arm gets extended by the subsequent pull of the club past separation. Any firing of the Right Tricep before separation will replace CF as the mechanism which is uncocking the Left Wrist.