When I fought with the SCA, I was the only one That could fight Otto {a lefty} and hold my own' When he asked me how I was able to hold my own against him, I told him, "I'm watching your weapon and body movements. It makes no never mind to me which hand that weapon is in." I trained under a left handed Knight in the goup Knights of Olde. I think that was an advantage in my training. I still have the scar on my foot where the broadsword went through the top of my left foot. But I won my Knighthood! No pain, no gain!