I will probably end up giving the G&G bucking a try - thanks for pointing that out. I'm not going to buy much for this thing as of yet since I've gotten it to be very predictable.
Teflon taped a little of the bucking to the barrel, sealed the O-ring on the cylinder a bit better, cleaned and lubed everything and cut an O-ring to replace the missing nub - fires much better than ever. Oddly enough Horseman, I lubed the magazine on a whim about twenty minutes before I saw your suggestion to do so, and after around 30 or so shots it hasn't double fed once, and normally would every 2 or 3 t