Backup/Loaner:
Tippmann A-5 with Response Trigger
Palmer 12 inch Brass Barrel
Lapco Snapshot Barrel .687
Pure Energy 68cu 4500 psi HPA
Palmer's Stabilizer
TechT Vortex Mod
JCS Redhot Powertube/ Hexadecagonal bolt
Backup/Loaner:
BT-4 Combat
Recommended Paintballs:
Any quality balls, doesn't matter what size if you get the fin kit.
Strengths:
Accurate, quiet to the opponent, light, adapts to different paintball sizes, and looks quite awesome.
Weaknesses:
Shoots very badly after breaks.
Review:
Ok, I waited until I used it to review it, so here goes...
I just got back from the West Point Fall Scenario, and tested out my new setup. If you read my Tac-1 review, it'll give you the little anecdotes. In essence, my setup shot just as well as a friend's setup with a REALLY upgraded NXT Shocker and a Dye Ultralite, and I played much better than usual, shoot five balls, a hand goes up 70 feet away, streams of paint hitting a two foot radius at 100 feet, etc.
I had not a single chop or barrel break, so it was basically just streams of paint both days (two cases of paint) but I did break some balls in my hopper, and I couldn't figure out what was wrong for a while, but I did find out that the Hammerhead shoots really poorly when you break a ball (which is to be expected, all barrels I know of shoot badly with oil or paint in the barrel).
The ball sizer worked well, the lithium grease was useful, everything was as expected.
Conclusion:
Great barrel system. I haven't tried any other kits, but as a kit, this one is great.. Just what I expected.