[Daryl]

Can a swinger use the right arm to help with the finish swivel of should the only thought be to use the left arm? The Centrifugal Force is not doing it so I need some help for now.

You need help with Centrifugal Force. But for now, use both Wrists. Keep the Left Wrist Flat.

Here is what the green man said a few years ago:

10. Finish Swivel (4-D-0). Go to the end of the Follow-Through (Both Arms Straight position) with the Left Wrist vertical to one of the three Basic Planes (Horizontal, Vertical or Angled). Slowly rotate the Wrists into their "parallel to the Plane" position for the Finish. The Finish Swivel is a key element of the Total Motion and is indispensable as a bridge from Follow-Through to the Finish. Sadly, it is completely missing from the Stroke of most players, and they are left only with a bending Left Wrist to enable the Club to 'pass the Hands.' You 'prepare' for the correct Finish Swivel (by making a compatible and correct motion earlier in the Stroke). Similarly, you also 'prepare' for the dreaded Chicken Wing (by making a compatible but incorrect motion).