Overrolling and underplane on the backswing, SOLUTION?

[lagster]

So far I have only been able to correct swinging under plane on the backswing by cocking my wrists straight up as I start my arms back, thus double-cocking. I don't consider this a valid option because I have a difficult time maintaining a FLW through impact with full swings. I am wondering what drills and especially mechanical changes anyone would suggest. Any and all advice is most appreciated, I know there are a lot of people with this problem. I want to kill this rattlesnake once and for all.

Since I have such a late wrist set with this overroll I was curious how one can develop an earlier set without double-cocking. Bend the right wrist back before the arms move all that much?

Thanks in advance,

Matt

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Do you mean an OVER-TURN(pronation of the left wrist) on the Backswing?