We have an 8:15 ADR at Crystal Palace on one of our MK days. I've moved it several times(from 8:40 to 8:25 and finally 8:15). I keep checking and hoping that an 8:05 ADR will open up but I'm almost at the 30 day mark and I don't have very high hopes at this point. Is 10 minutes worth it? Would you keep checking? What time will they let us enter the park? I've never had a pre park opening ADR before.