
Oh yeah, misfeeds and jams. It is pretty much up to the discretion of the instructor as to how that is handled. My policy is that if you have a single FTF, then we clear it and go on. If you have multiple problems, then either you don't have enough experience with your firearm or you are having mechanical problems that need to be fixed. So, either you rent a gun from the range or you get to pay for a private "learn to shoot" class and shoot another day. There is nothing that says you have to qualify the same day.
But, if you are really worried about FTF then "throw away that nickel plated sissy pistol and get yourself a Glock!"