I'm going to withdraw gracefully I think.
There is just no way at the moment I can keep up with the challenge. Not at specified times. So if a book has come from my TBR pile and has been there for a while I'll tag it as such, but otherwise I'm going to just try and get through the mountain one book at a time.
Speaking of the mountain - I am still cataloging it. When I have a definitive number I'll post it here. On the plus side, I don't think it's as big as I thought it was, but on the minus side it's still more books than I could possibly read in a year, if I read continuously!