Also thanks for posting the stats of your students. Pretty good batting average. There is so little information published about how armed civilians do when confronted with violence. Most of the time I see references to NYPD shooting stats but I am not a police officer and don't feel those stats apply to me.
One question: in the worst case, against how many attackers did your students successfully defend themselves? The reason I ask .... would a J-frame snubby have worked?
WT- Many of the incidents involved 2 or more assailants, and we've had incidents in which 8, 11, and 12 shots were fired by the good guy. The j-frame may be a great BUG, but I would prefer something a bit easier to shoot well, with more ammo in it. YMMV