Question for CL FP experts, please!

I am a bit unsure whether or not to take advantage of this program for our upcoming late March trip. Apparently, crowds will be high, so it may benefit us. However, we had only planned on two light park days and want to utilize MK Early Morning Magic (separate ticketed event) on one of those days. Disney has pulled availability for MK EMM for the date we purchased (they have done this before and cancelled the event), so I'm wondering if we should consider the purchased CL FP program as a back up plan. However, that would require us to to move from two to three park days and would have to be in the parks at least through the first six booked FPs.
Suggestions??? TIA!!!!!!