Which DVD to purchase

I am a 18 handicap that never gets better regardless of how much I practice or take lessons. I happened upon the AJ article and web video and am very excited. I never released the club like that and after practicing it on a p3proswing analyze,r the results are awesome - 15 yards gain on each club and very straight. The analyzer shows one problem still- I'm not striking down on the ball consistently. Does anyone have any suggestions to cure that and I was wondering since I kinda got the idea which video has the most bang for the buck. Customer service at ajgolf says they'll send me the truth about the release (w/o the club) for 25.00. I want more data on this technique.

Also I have adopted a grip were my left hand is strong andand right weak that sets my right forearm higher than left at address and promotes a natural opening and closing of clubface so I dont have to think about turning the screwdriver-anyone else do this or have thoughts on this?
Thanks