Any barrel kit will do. Of the cases I have shot they seem to be consistantly .692
Strengths:
Consistant size and shape. Seam is almost not noticable
Weaknesses:
A bit too brittle at times
Review:
All and all a good paintball. The fill is nice and thick, hard to wipe. I have yet to have problems with inconsistency in shape or size. The only problem I have had with the paint is sometimes it is too brittle. There are times when the paint is so brittle that my halo pops it the hopper, or forces it down enough to crush one paint ball with the one above it (but at least it shows my detents work ). I have no way of knowing the age of the paint before I buy it so that could be a factor.
Conclusion:
All in all a decent paintball. I give it a average rating because I feel that 10's are given out way too freely.