Most of the advice I've seen is yes, take advantage of the early EMH, get as much done as you can, then once the Park officially opens and starts to fill up, hop over to a different Park. That's assuming you have Park Hoppers, of course. I wouldn't really know since we are NOT morning people and rarely make the morning EMH's. This trip with the advent of FP+ though, I think I might have to bite the bullet and set that alarm!