Using a hop bag in the fermenter never quite sat right with me. The bag has to have some issues in that draw string or the folds....just didnt seem right. Also, as others have pointed out, getting the wet, swollen bag of hops out of the top of the carboy is painful. I somehow always think I can taste the "bag" in the beer later. On my last few batches, I've just thrown the hops into the fermenter and then cold crash the hell out of it for a couple days at the end to drop everything out. The beer has been turning out much better. Nice hops flavor and aroma, no bag taste! The cold crash clears it up really good. I get a few hop flakes in the first pint or two but then everything is clear from there. I wont be using bags anymore.