From your study of gunfights and especially teaching of classes have you encounted any problems with loading a magzine longer than designed for the pistol, when pistol is at slide lock. I am thinking primarily about compact or subcompact pistols where the user carries a magazine for the full size version of the pistol. For example carry a G26 with a G17 mag as reload or Sig P229 and P226 mag as reload. I do not envision any problem if reload done with slide in battery as top round will encounter bottom of slide. But a reload at slide lock with longer mag will not have baseplate to stop mag from being inserted too far. I am thinking especially of a hard, aggressive reload one might do when under stress. I realize that some pistols have little ledges to stop mag from going into too far and of course mag catch itself may engage. But I have been concerned that mag catch may not engage and those little ledges may fail. Of course one can point to the 33 round glock 9mm mag which will not have its baseplate engage the bottom of the grip of any glock models.