I am a rec tennis player and still learning and I got a bit puzzled with the person I most frequently play with. He says that he keeps his right hand firmly in the same position on the racket even when switching back and forth from forehand to backhand shots. I, however, adjust my hands based on my next shot. The problem I have from this is that I sometimes don't position the racket right and hit some balls too high/low. Should I adapt a grip like his, not changing, or just work on getting the racket set up for the shot a little better?