I currently use interlocking grip, have done so since I first started playing. I have some arthritis in my right pinky, the joint closest to the hand. It is starting to bother me, I noticed it the last time I went to the range and after this round it was really aching. It may not bother me once it warms up, but I am thinking I may be forced to change to an overlapping grip. Anyone make a grip change after many years?