I have an old-style A12 back which has just begun fogging on the right (inside), and overlapping about 3/4 frame through on a couple of rolls. I'm pretty sure I know the cause--that plastic thing in the mag that mates with the body drive gear is probably worn down, and I need an overhaul. Actually, the mag needs an overhaul is what I mean, although I could use a few new parts meself, come to think of it.
Howemsoever, when I loaded a roll, went to frame 1 and set the counter, then rolled past to frame three, the problem did not happen. Last roll I did the same thing, only with one blank frame. Everything was fine.
Anyone else have an experience like this?