Predicting EMM days?

[CarolinaBlue99]

I'm hoping to take advantage of Early Morning Magic for our trip the first week of March 2018. Is there any pattern to which days of the week it is usually offered? Through Sept. EMM was on Sunday/Tuesday, but seems to switch to Tuesday and Thursday in Oct. My ADR day is quickly approaching, so I'm trying to predict the days we'll be in which parks and come up with a tentative touring plan so we can eat where we'll be.

Thanks so much for any insights!