I've noticed that I catch my wrist (fh follow through) with my left hand. Maybe catch is the wrong word, because it almost acts like a shock absorber. This is kinda hard to explain. I hit my fh and follow through about shoulder level, but just before my right hand gets to my left shoulder, I catch it with my left hand. I don't actually grab it, I sort of close palm it. If another ball is hit to my fh, my left hand still tracks the ball as my right goes back into position. If its to my back hand my left hand just slides into place (from wrist to racquet handle). I wish I had video to show you.