Early Morning Magic Crowd/Wait Time Effects

[begood524]

So I'm planning a trip for mid January, and I noticed that on some of the days there are Early Morning Magic events at the parks I plan to go to on that day. I have no intention to pay for them, so I'm curious: how big of an impact do they have on increasing wait times before rope drop for everyone else? Is it as bad as EMH? Any help would be appreciated

 

[SourcererMark79]

Any attraction in the area of the park that is open for EMM will have a standby wait. 7DMT is the obvious one here, but the rest of the park opens the same to them as you so should be minimal.