Well that would be the right thing to do. We sort of will, too. We will drop the acid analogue and when the plateau has really settled in we will decide whether or not we are gonna dose the MDMA. I don't get to use drugs as often as I used to anymore, so if we did the ETH-LAD I'd have to wait a few weeks for the candycrush or whatever it's called. ;D My misses doesn't feel like dosing psychedelics very often, so weeks may turn into months. I'm just fiending. Plus, it's been years since I last combined psychedelics and MDMA, so I am really really really looking forward to that.
Another reason though is that I don't want to dose my wife too high, since she has only done 2C-E and DMT, so acid is sort of new territory. Since we will take roughly the same dose (relative to weight) I am pretty sure 100-150ug won't be the ass-kicking experience I am looking for, so the option to top it up with some MDMA seems very attractive.
But yeah, we will see. She has a word in this as well and for all I know she could be unwilling to dose MDMA once the acid has taken hold of her.