Tippmann Custom Pro Platinum, RAP4 16" Milsim Barrel, Cyclone Feed System
My local MC Sports had these on sale for $24.99 (per 2000), so I picked up a case to try out. Admittedly, my expectations were pretty low, but I have to say I was pleasantly surprised.
I haven't used them in actual gameplay yet, but I did some tests out in the woods, shooting at foam airsoft targets and wooden bunkers. I went through roughly 800 rounds with no barrel breaks and I was able to keep fairly tight groupings. The fill is pretty thick, although I would have liked to have seen a fill color other than yellow, as it didn't seem to show up very well (they're probably available with other fill colors, but MC Sports only had yellow.)
Aside from the fill color, my only other issue was that the seams were kind of heavy, and I had some bounces (although I mostly attributed the bounces to the fact that I was shooting in 18 degree weather.
Overall, I'd say these are on par with RPS's Stingers, but a good bit cheaper (at least, if you find them on sale). The seams/accuracy could be be better, but for an entry-level paintball, they performed as good or better than expected.
If you're looking for something good for playing woodsball with your friends, then I don't think you'll find a better deal. I just went out and bought a couple more cases, and I'll probably buy a bunch more before the sale is over.
BTW - to previous posters who complained about brittle shells and dimpling, I'd say that is more a symptom of stale paint rather than a shortcoming of the paintballs themselves.
If you live in some podunk town and buy your paint from the local WalMart, where they maybe only sell a few cases every six months, then yeah - that's pretty much what you're gonna get.
If you buy a case of paint and find a bunch of dimpling, then box it up and take it back for a refund (DUH!!!) Or you can write down the lot number and email RPS - who knows, maybe they'll send you a new case or something.