Nothing to be nervous about, it's a great beard and they will surely like it. Sounds like some of them don't see you that often, so why shave it for one day?? And shave it for a risk that they "might" not like it? Keep it and take the risk for the day or short time that you "might" feel a bit out of place (which I don't think you will feel out of place). Then you won't have to start over because you'll will miss it, so ... keep it, they're going to like it and if they don't you can tell them all you got some bad advice from a moron on the beardboard (ME) -- LOL.

Again, go in with confidence, they're going to love it!