This is what I'm going with as well. My personal strategy is to think about how many days I want to visit each park and what my priorities are (for example: 2 MK, 2 EP, 1 DHS, 1 AK, priority is going to each park at least once) and then snag what I can on each day not worrying about which day I'm going to each park. If I can't get what I want, initially, I guess I'll just keep checking. I guess the advantage at this point is I don't have to think about scheduling around
MNSSHP, trying to make sure I see nighttime shows etc. And since I can't make park ADRs before I have a park reservation, I don't have to schedule around ADRs either.