I have no idea how it happened. Was playing frequently for years with a 1HBH that had become a great weapon. Was playing the BH side in my USTA 4.0 USTA league and handling it well. Walked on the court a few weeks ago, hit a BH and felt a sharp pain. Hit another. Another sharp pain. Haven't been able to hit a 1HBH since (or serve without pain). I'll see an elbow specialist on Tuesday. But in the meantime I've been hitting a 2HBH with NO PAIN. I'm not great at it of course, but I've cracked a few solid shots with it and I think I understand the mechanics (mostly) and I look forward to working on it. I did try a 1HBH lightly today and felt some mild pain, so I figure it's going to be shelved for a long while. The 2HBH is an interesting shot. It certainly feels different than the 1HBH, but for people who suffer from Tennis Elbow, I have to say: give the 2HBH a try. It might allow you to play pain free, and might give you a new weapon that you come to enjoy just as much as your 1HBH.