hey guys well ive been lookin all around the web tryin to solve me problem...i have an smart parts ion with the virtue board and eyes. the problem is wheni shoot me gun with the hopper on it i cant shoot faster then 4bps. it shoots great without the hopper on it. i look at the bolt well shooting and i notice that the bolts doesnt go all the way back when i shoot fast so the balls doesnt goin in the chamber. i tried new batterys, cleaning the gun, lubing it, resetting the board.. all the o rings look good..i really dnt no what to do next..