Dear Mas, A lot of Instructors are teaching Force on Force gunfight training with airsoft pistols. "Getting off the X", mobility and shooting while moving and the ability to hit a moving target are emphasized. The 9mm is often the preferred round for some of these schools due to it's higher magazine capacity and it's lesser recoil lending itself to faster follow-up shots which would in theory translate to more hits & greater hit potential in a real fight which they believe would likely involve dynamic movement of both parties(at least initially). First, do you feel that line of thinking has merit? Second, I recently asked Chuck Taylor what his go-to everyday CCW was and he said it was either a .45 ACP 1911 Colt Commander(no surprise there) OR a 2nd Gen Glock 17 loaded with Corbon DPX 95gr @ 1300 fps. I was very surpprised by his second pick with the very light/very fast bullet choice which he said he carries just as often as his 1911. The 230 gr .45 ACP slug will probably be traveling at approx. 900 fps. Will that 400 fps less velocity compared to the 9mm round actually translate to better accuracy & hit potential in shooting a live fast moving target? Thank you for time.