Im just a beginner but returning from the driving range with great success.
I was hitting the ball all over the place, 1 in every 4 i was happy with. I decided to give the overlap grip a go. I hit about 20 balls perfect with a 4i around 160-170 on the fly. Immediate improvement. I felt that with the interlocking grip i kept digging into the shot (fat) but with this new grip i dont have the feeling anymore.