I already was a fan of .45 Glocks but now, after attending the four-day Defensive Handgun Course at Front Sight, I am more so. My son-in-law, with huge hands, used his Glock 21. My 14 year old grandson used my (soon to be his) Glock 37. I used my Glock 38 with G37 magazines for spares. During the four days, I observed malfunctions with 1911 style pistols, Springfield XDs, Berettas, and a Sig 250. I did not observe any malfunctions (other than operator errors) with any Glocks and certainly not with the .45 Glocks from Kansas. Glock magazines seemed to not be affected by repeatedly being dropped on the ground during Category two and three malfunction drills and emergency reloads. By contrast, 1911 magazines seemed to be dirt magnets! Although these Glocks would not be competitive in a bullseye match, they have more than adequate combat accuracy. At Front Sight, the targets seemed large and close until time pressure became a factor. I saw thumb safeties missed on 1911s and even the grip safety on an XD not depressed because of an improper draw. The Glocks have a great point and shoot interface. We were told that the steel reactive targets were calibrated to usually drop with a good hit from 9mm. This seemed to be true but there was sometimes a noticeable pause between impact and the target dropping. 40 S&W and 45 ACP fmj did MUCH better! The 200 grain Gold Dots my grandson and I used not only caused an instant drop but would rock the target frame. I suspect that this was caused by the hollow-point bullet transferring more energy while it was being deformed. Accuracy, speed, power - 45 GAPS are winners!