On that one he combined all of the Compacts , G19s and M&PCs in with fulls size guns. It is possible some might carry a smaller at some times and brought the Full Size because of all the shooting involved at the event. The later survey question he sent out to instructors which likely included some that attended the event had a 100 Responses. It had similar numbers when you combined the big guns. What size of firearm do you normally carry 44% FullSize 4-5" 43% Compact 3.5-4" 7% Subcompact 3-3.5" 5% LongSlide 5"+ 1% pocket Until recently, I almost always carried a 4.25" or 5" Full size M&P. The last couple of months I have been going back and forth between a G17 and a G48. It is weird carrying the G48 as I sometimes feel I'm inadequately armed. The 1/8" less in width is quite a bit easier to conceal with a normal t-shirt or polo for me though. I ran the G48 in class this weekend and I'm pretty happy with the results.