Well I don't have anything even remotely close to what you guys have. My pieces always fall out of the rock, and therefore I always have to re-attatch and they discolor from falling, etc... but I am seeing great growth.
Blue Tip Staghorn when I first got it:
Blue Tip Staghorn as of tonight:
Birdsnest when I first got it:
Birdsnest as of tonight:
I think I see some green forming on it maybe... anyways, nothing special.. just thought I'd share.