Okay got one for DCA as a starting park. Is there a smooth way to swap starting parks if DL opens or do I have to be in limbo by canceling one and hoping the other is actually open.
You could check the general availability calendar and if you are fast enough you'll be fine. But, it's a gamble.
We have honestly just started arriving closer to 1pm and staying later. 6-8 hours is plenty for us. We go to whichever park we feel like having lunch in first.
From now on, though, I'm trying to book mostly DL starts so we can take the monorail in and save some steps.