You should probably get your local field or paintball shop to install the anti siphon, since it has to be to your specific gun. Since you have to get the siphon up towards the gas in the tank, it takes aligning the tube upwards.
HPA may not give you as many shots, but it's amazingly consistant, and that's part about being an accurate player, consistancy helps. Also, if you were to get an HPA tank, if you upgraded to a better gun, you wouldn't have to worry about anything. Even if you think you won't get a new, and better gun, it's always a possibility
