During EMM, 7DMT tends to be a sliding scale of waits. Everyone tends to go there first, then other rides later in the event.
We did EMM on 5/26. Rode 7DMT 5 times between 8:32 and 9am. The longest wait was 3 mins, 32 second. We were the only ones on the train on our last ride at 8:59am.
We didn’t ride before 8:32am but the lines looked longer.
Experiences tend to vary though. During past events we’ve had upwards of 10 min waits at peak times. You occasionally see reports of higher waits on the EMM thread.
A few mins here or there can mean a lot at these types of events.