For your Blaze, .689 is the best bet & seems to be the favorite. Don't use Zap at all so I can't help you there, but I think it may be a slightly smaller ball so though you'd lose some accuracy & range at least you shouldn't get breaks from the barrel being too small.Originally posted by Cerberus
I'm use diablo blaze mostly, but at NvS it'll be Zap, can anyone recomend a good insert or two?