Last Dec we switched from BWV to BCV, I think it was the 7th. We checked in at 9:30 am expecting to wait all day. We were given the card to call, she said with a wink that it might be ready soon. I called about a 1/2 hour later and asked to have it checked. The CM that answered sounded doubtful, but then she came back and it was ready. W were in the room by 10:15.
I think we were pretty lucky that the room was either open the night before or the people checked out early, but either way, we were very happy.