I would definitely keep checking every day! We didn't book our trip for next week until September, so we were significantly past the 180 day mark. I didn't get anything at first, but then landed a CRT reservation but it was a bit on the late side for little ones (9:30 PM). We took it anyway, and I just kept on checking pretty much every day....when, voila! Yesterday afternoon, I got an earlier reservation on a better day for us! I was very surprised and excited, but it seems to be fairly common that people score reservations closer to their trip date if they stay persistant (at least from a lot of the posts I've read here). Good luck and keep checking!!!