Females will rarely venture outside of molly, in my experience.
When I was tripping on acid, the MDAI gave me energy, elevated my mood ever so slightly, and make my limbs feel strange. I imagine the effects of MDMA on acid would be very similar, only more intense.
I don't know if I would ever try MDMA while on shrooms, because like you said, it might not even be noticable. I find the euphoric effects of shrooms to be much greater than that of MDMA. The only downside is that the effects could cause my mood to be just as extreme, but in a negative way. My limbs always feel like jelly on shrooms, so that effect of MDMA might not be noticeable either. I think I would be afraid to drop MDMA if i was already under the influence of shrooms. Shrooms tend to make me very cautious.