the first one had its problems i will say. the blow back from the gun knocked the balls back up in it so it wouldnt load very fast on vertical guns. Odyssey has fixed the problem with the halo B. it is now belt driven with spring tension. the new ones kick butt. they literally can not be out shoot. i know the guy who designed it(tex) and got to use his prototype one. i shot 13 shots a sec on my angel with no problem. Tex has shot guns at 24 shots a second and the gun broke before it out shot the hopper. oh and its alot quieter i mean quieter than the revvie. it is really awsome. everyone should get one
Weaknesses:
only with the Halo A the B kicks butt
Conclusion:
once the B comes out which will be in about 2 weeks everyone will wish they had one
