The breakdown of a MkIII can be a PITA, at times. I last field stripped mine...um...a while ago. A box or three of bulk ammo. I did take a q-tip and some cleaner to break the junk out from around the feed ramp and chamber, it was VERY VERY dirty. I probably should take it completely down and clean it up, but I'm lazy and it hadn't malfunctioned until the crap was so great that the rounds were having difficulty feeding. I've never done a detail strip. There are two issues with field stripping the gun 1) There's a bunch of steps that you have to do in the right order (most are pretty obvious, but I'm brain dead on occasion), and 2) you have to make sure you've seated the receiver far enough back on the grip frame. I use a rubber mallet.
I've heard Emoto talking about his friends' MKIII's, before. I'm inclined to believe that they got on the very unlucky side of things. Most people I know with one have never complained about it's reliability, and mine keeps running and running until it gets more cruddy than any firearm every should be. I shoot federal bulk packs, blazer bulk packs, CCI SV, CCI Minimags and Aguila SV through it. It could be their particular guns were more sensitive to their particular ammunition, for whatever reason. .22 is like that. His suggestion of the Single Six is sound. Not everyone likes SA revolvers, but they are fun little guns.