I did the same thing. We are going May 27 - June 2 and have park hoppers. I have scheduled to be in the parks that offer EMH at night to which restaurants we will eat at that day. We will start at one park a couple of days and move to another after lunch but for most days I have it scheduled for one park.
I would like to get up and do the morning EMH as I am an early riser but DD12 and Dfiance are both late sleepers and getting them up to leave our room by 6:30 or 6:45 will be more of a nightmare than I care to deal with. So I will have to deal with staying up late this week and doing the late hours.
Example:
Day 1: arrive and eat lunch at Coral Reef
dinner at Teppan Edo
EMH hours at Epcot
Day 2: lunch at Sci Fi
Dinner at Mama Melrose
EMH hours at Studios
DD5 is an early riser so we did morning EMHs with late breakfast/early lunch character buffet ADRs in the park... I got to do some evening EMHs alone after DW & DD retired - purely for research purposes, finding out which rides might be too scary for DD, you understand