I'm 33, haven't played in 15 years, and I am just getting started for the first time ever in league play. I hit with one of the guys that runs the leagues because I wanted to get an accurate rating. While we were hitting, he noticed my crosshanded backhand and advised that I change it. He was nice enough to show me the correct two handed backhand grip and fed me some balls to try it out. I was terrible at it! Now the question: with league play starting in September and practice time hard to come by, should I try and change it or stick to my old way that works pretty well for me?