[noproblemos]

You are probably swinging your Right Arm, Neil. If so, you have transferred your Arm Swing Center from your Left Shoulder to your Right Elbow. This motion is not a straight-line piston action of the Right Arm. Consequently, it can cause a twinge in the Right Elbow and, ultimately, injury to the ligaments.

Does the right arm just move up and down? is this what you mean by a straight line piston action of the right arm?

As a side note:
I haven't read Golf-O-Metrics by Joe Norwood, but I read a short summary of position #1 in the book "The Secret of Golf." It seems to me that what he's teaching is not a straight-line action of the right arm? Can anybody confirm this? Is this the kind of movement that will cause injury (it seems like it could)?

Thanks