Hard to diagnose without pictures of your swing or even your grip. But, if you use to hook badly, then the new grip causes a slice, then use something in between the two. Actually putting the heelpad on top, puts the club more in the fingers then hands, or your grips may be too big for your hands, without pictures it's a bit difficult to tell. You also may be holding off the release with the new grip, if you remember I also mentioned that you would probably have some bad swing compensations from using a bad grip for a long period of time. With grips that were held mainly in the fingers (too much in the fingers) people tend to flip thier hands through impact, rather then roll the forearms through. With the correct grip, you may need to learn to roll the forearms through. My point being, I don't know without pictures of your swing and grip. I don't think any other GTO member can either.