I recently got a lesson from my course's pro to get my swing back on track after taking a year off (swing was a wreck when I quit last year and wasn't much better this year). The first thing he changed was my grip, he said my grip was too strong and that I need to adopt a neutral grip. This felt horribly unnatural, but I stuck with it as I saw good results at first. Then out of the blue I became a pusher of the ball, I'm talking 45 degree pushes out to the right. I also started severly slicing my long irons and woods, badly, can't keep anything on the fairway now.
I read some books and they all mentioned that a slice can be cured by adopting a strong grip, so I went back to my old comfortable strong grip and now my pushes and slices are gone. I've been fighting with my swing for a week, going to the range every night and getting horribly frustrated at the results, and it was all because of a change my instructor forced me to do.
I know if I go back to the same instructor with a strong grip he will spend our whole $60 session telling me to switch back to a neutral grip, should I find myself a new instructor, or am I getting a false positive my switching back to my strong grip? Is it possible that the strong grip is just better suited for my swing or is my instructor right and I need to change my swing to resolve the pushes and slices (if this is the case I give up because I've been trying to do this for a week and my swing has just gotten worse)?