I'm not trying to burst your bubble, but I'm thinking that a 27 lb pack doesn't really MEAN that much without knowing what's in it. As long as you feel like you're prepared, that's great. But I don't think just stating your pack weight is very informative. Maybe there are still items that you could leave behind, or maybe there are some things you should think about taking. I'm not sure I would give you a thumbs up based on weight alone. But if you're happy with it, I do think that your weight for a seven day trip is pretty good.
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...then we might find something that we weren't looking for, which might be just what we were looking for, really. - Milne