the relative weight of cans is annoying enough to me that i never put them on AR15s anymore. however, i almost always shoot my bolt guns and my SR25 with a can.
i really can't say enough good things about zak's titanium suppressors. very happy with it. several of my friends have YHM and they cost a lot less but are noticeably heavier and louder. (still, if you're on a budget, it's way better than nothing)