Shot what you have. I started out years ago shooting the only handgun I owned and it was one I carried. I would suggest giving the Glocks another go, though. I agree with the notion that a longer sight radius gun will shoot better, however, I have a Kahr K40 that I have carried for years and that short pistol is freakishly accurate and easy to shoot. Round count will be the biggest hindrance at a match, as well as lack of magazines.