[kebeal]

My advice is to keep the right elbow in place at the start of the backswing by swivileing or rotating your right forearm as if you were going to hand off a baton to someone standing to your right. When you have reached this position your right elbow should still be close to your side with your right forearm pointing straight away from your target. From this position simply cock your right forearm towards your right shoulder (this will also automatically cock your left wrist) to complete your backswing. Dont forget to allow your right hip turn behind you during all of this, otherwise you will have a limited shoulder turn.

Also, move into your impact condition and hold that pose for a while. Look and verify that your left wrist is flat and matches the leading edge of the clubface (in other words where the back of your left hand faces the clubface should too). If your grip is very strong or turned to the right at adress, the clubface will look very closed when you achieve a flat left wrist during the backswing.

A word of warning: I am no expert when it comes to TGM, and I definitley check my ego at the door when entering this forum. So if I am incorrect in my explinations or concepts please feel free to correct me.