Ive always used pmi premiums or marbilizers since at my local shop they are the best ive used and the prices cant be beat.
Spyder MR1 Pure energy 20oz CO2 and Pure energy 48ci3000 hpa, VL revy hopper with upgrade to feed 20 balls persecond PMI twilight barrel13inch a carbon fiber 16 inch and the stock 12inch a 8+1 hauler and a 6pod hauler PMI invader mask and JTElite mask and a Scott mask
anything with a .689bore size the barrels with a .682bore will cause breaks and inaccurate shots as the bore size is too small
Cheap $45 for a case at my local shop accurate (individual results will differ)
None that ive come across.
All in all this is a great inexpensive alternative to pmi premiums and marbilizers i cant wait to use these in a real game and not just testing puposes. Like i said the bore size will effect this paint so make sure you do your research as with all paintball and barrel setups.