Alright, got the new AO10 and it says to seal the seams. Now...on my other tents it always came with a sealing bottle for the seams, but I never did it. Never had any real issues, but never tested it in BAD weather either (camping just isn't any fun in that kind of weather, and it hasn't seemed an issue on any hunts so far).
How important is it? You all do it? (for the record, i am doing it...as might as well make this tent perfect).