Supposedly there was a thread on MCB2.0 on this topic. Guess this could be it's revival, though I'd rather see it get it's own subforum. It seems there are >300 of these guns in circulation and neigh a working one in sight, for having said it is working now means it is broken.

Problems mentioned:
  • Bent pistons
    • Prevalence: 9 of 10?
    • Occurrence: ~2000 shots after piston replacement?
    • Root cause:
    • Remedies:
      • ?
  • CO2 induced seizing
    • Prevalence:
    • Occurrence:
    • Root cause: O-ring swell?
    • Remedies:
      • Only use HPA.
Edit: You know what we need? A wiki for paintball tech info.