shooting with either hand:
Funny you should ask that question. I just was practicing this past week on shooting my Glock 19 left handed (in case something happened and I could not use my right hand to shoot). Was a little awkward at first but after awhile, I began to shoot pretty good groups using my left hand only. Had to work at it but it came around to where I could defend myself if needed and still hit what I was aiming at (if reasonably close).