Revy (all of them)
Zap Quantum (dont even both its so bad)
Air America Armageddon 68/4500
9volt (12 would be godly)
Lid is even with top
I just recived this product and i decided to put it up against my 12volt revy w/xboard. The 2KX holds about 7 more paintballs than a revy does, and runs on a 9volt. If this hopper came in a 12volt or 18volt, it would just own, but it doesnt and it doesnt have to. i filled them both with the same amount of paint and the 2KX came out ontop by roughly <1second faster than the revy. Since there wasnt really a clear winner that i could see, i did a diffrent test to look at the stream of paint, the revy had gaps in it after about 1-2 seconds while the 2KX had a very steady stream. The LCD screen, timer and other things is pretty cool, and the shape is also cool also. I play front so it should be interesting to see if it really deflects that well.
The only problem I really had with it was that the lid is even with the top, so reloading can be tricky sometimes unlike the revy where its extreamly easy to reload.
This is a very good hopper for the price and for the battery it uses. Id reccommend it to anyone who cant afford a HALO and doesnt like the EGG.