Derek is about to start another season on the Latin American Tour, and his swing is really rounding into shape. By opening the clubface more aggressively in the backswing and all the way to the top Derek gets the club right on plane instead of crossing the line, which makes a big difference in his downswing and approach to impact. The rotation of the club with the left hand and wrist serve to externally rotate the right shoulder from left arm parallel to the top, which puts both the shaft and his upper right arm in better shape to initiate the sidearm throwing motion that will allow his hands to advance more forward at impact. As you will see this simplifies an already clean, simple looking motion that is powerful at the same time. I fully expect Derek to play well and continue to advance in his attempt to make the PGA Tour.