DXS blaze (I think) woodsball is the main, a couple other various makers at fields.
Tippmann A-5 w/ Hammerhead Sharktooth barrel
Force Products (from ebay) Hopper Elbow Adapter, Proto Primo PB Loader
Ninja 48ci/3000psi N2 tank.
Tough, consistant, brittle enough to break on impact every time.
Ordered a trial run of 500 from RAP4 a couple months ago, and shortly thereafter ordered 6k from them. They run about the same price as average no name paintballs at my local shop here, so there was no reason not to switch. They're accurate, consistent, and I've only run into a single dimpled one. The biggest advantage for me is that my friends and I play in a forest, and so we need something that's eco friendly, and these are perfect. Just FYI though, we are in no way speedballers, we play slow 30 shot rounds of woodsball, and for our purposes, these paintballs are awesome.
If you're into woodsball, and playing somewhere where you want to be environmentally friendly, pick up the 500 pack and see if they work for you. I haven't found anything better!