After reading through this thread, I think I may be the luckiest man alive. I haven't had any of these problems except for the crappy slipper. I think I'll buy a lottery ticket and kiss a girl that's way out of my league. The stock X-rings work fine IF you shave just a hair off the spacer in the cartridge, no need to go and buy others. I'm running a Castle 1406 7700 4pole MMM at 13/93 and its and land missle.