I'm not sure Chad, I haven't tried the new ACX I don't guess, thats the first I've heard of it. The longer the limbs, the more noodley they are. But I've picked all them up by the ends and strung them with push pull..... They are not as fragile as you think, but they do take some getting used to.

I think you would have to try pretty hard to break one, but you never know! I planto hunt with this bow and treat it like I do all my other bows, rough!