Now I'm aware of some of the old cheat techniques such as thumbing the cocking rod, not holding the pump forward over the chrono, filling your magic box with liquid etc but this thing appears to have taken it to a whole different level:
http://www.baccipaintball.com/oldnews/russell-breeden-doom-trooper-mini-sniper
Two different paths in the bolt for the air (one for chrono, one for game) and an autotrigger you can adjust with the intention of dropping 25fps for the chrono.
Any other old school tricks I've missed (not that I'd use them, just curious).
http://www.baccipaintball.com/oldnews/russell-breeden-doom-trooper-mini-sniper
Two different paths in the bolt for the air (one for chrono, one for game) and an autotrigger you can adjust with the intention of dropping 25fps for the chrono.
Any other old school tricks I've missed (not that I'd use them, just curious).