Well I have put a little over 200 flawless rounds through the new carry gun. I am learning about sight radius and how it works in real life. Truthfully I never paid much mind to it before. I shot the Sig. at the outdoor range today, first time with it outside. I was a little further back (about 30 ft) than other times I have shot it (about 21 ft), as the husband was chronographing some .45 acp loads for me (mine are a hair under major) and we were sharing a range. I shot a mag of my SD loads through it, no problems. I am not surprised that the group was not as tight as I would like it as my trigger finger was all over the place. Sometimes I was using the tip, sometimes the first knuckle, etc. The front strap can rub the base of my right hand ring finger until it is sore. So this time I put a band-aide where it rubs me. It worked like a charm. I have zero regrets buying this gun.