About 2cb I read multiple times (I think Shulgin even mentions it in Phikal) that the 2cbs effects are enhanced when it is taken just after being "back to baseline" after MDMA consumption. Could it be the same with 2ci?
Just as an idea, maybe you are interested and want to change the order of the substances (if you can find any more information about this).
If your dosing the day before do it early - that way you have time to come up, trip, come down and rest before the MDMA. If your up all night tripping on 2ci then you probably wont enjoy the MDMA as much as your body will be tired.