Spyder sonix/ java em1( haven't used on the emmy yet) 3000psi remote coil and two in 1 pack and a 3000 psi 68 ci tank(preset)
very consistent, would not suggest using on a sonix cuz i really couldn't get fps up far enuff( past 250). really reliable, doesn't empty too fast, i lasted a whole four hours with it only refillin once and it didn't sputter too loud like co2. i would definitely suggest this to ne one lookin for a simple way to upgrade.
nothin as far as i can see
great tank get a 68 ci cuz it will last long than a 48 and doesn't weigh as much as a 114ci and it is a great price!