Yes, Magic Morning/EMH. We will be there at rope drop regardless.
I think I can speak for just about everyone that it is a no brainer to do MM/EMH at DLR. At DL most (including me) would suggest focusing on FantasyLand where you can make your way through 6-9 rides in an hour that would take 4 hours later in the day.
Expanding on this, for those staying at a DLR hotel and have EMH every day, when you are there during high season and the parks open at 8AM, doing a 7AM EMH every day is very difficult. The last time we tried I think we made it 2 of the 4 mornings, with a third morning we made it to DCA EMH about 30 minutes after it began.
When you are there and the parks open at 9AM or 10AM, then the (8AM or 9AM) EMH is a lot easier to make for mere mortals and perhaps more valuable.
For those
not staying at a DLR hotel, but who have a MM, my advice again is similar to others: use it on the first possible day you can - preferably on day 1 - especially when it is a 7AM MM. If you put MM off to later in your trip, you may find out you are too tired to get up that early and the MM gets wasted. If you can get to DLR the day before MM and get to bed at a reasonable time, your best chance to really enjoy the MM is on Day 1 when you are fresh.
Additionally, for rope drop folks who do not have MM, it is also a no brainer to go to the park
without EMH each day so you are on a level playing field with everyone else. EMH/MM affects wait times for rides mostly in the first hour (or two) of each day so if you are a late arriver then do not worry about which park has EMH/MM because EMH/MM effect will be diluted by the time you arrive.
Finally, since DL only has FantasyLand and TomorrowLand rides open during EMH/MM, then it will be fine to rope drop DL without you having EMH/MM as long as you "turn left" when you get to the hub. In other words, the rides in AdventureLand/FrontierLand/New Orleans Square/Critter Country are all closed during EMH/MM so if you start there at rope drop you are on a level playing field with all the EMH/MM folks already in the park. Focus on the "left side" for the first hour or two and you will be fine in this case.
DCA essentially has all headliners and all lands open during EMH so the same trick will not work there as normal rope drop arrivers will find lines built up (to some degree) for every major ride when they finally get into the park.
Note for WDW vets - the EMH/MM effect on park attendance at DLR is not nearly as pronounced as at WDW because there are just not that many people using EMH/MM at DLR compared to WDW EMH. I personally almost always avoid WDW parks with AM or PM EMH even if I have EMH privileges - which I always have. The WDW hotel guests pack into the EMH parks and skew crowds. It is not like that at DLR, so no need to totally avoid the EMH/MM park.