Ecstasy in 2 intervals same day?

I'm going to a concert with my friend and the plan is to drink a lot of beer and snort blow. The night after we are planning to do E. We got the idea that we should take E quite soon after we wake up the day after the concert, in order to get rid of the hung overness, ease come down from blow and general lack of sleep. Just one dose, come down and then rest and take more in the evening.

I have some experience of mdma. Maybe 10 times, but I have always taken it in one evening/night. My question is: Are we going to spoil the effects from the pills we take later in the evening?

My experience is that the second dose when I take all in one evening never feels like when the first dose kicks in. Will there be a "first dose kick" in the evening if we do it as described above?