BT: it has always been stated that MDA is more neurotoxic than MDMA but as you rightly said, where is the evidence for this?
I would assume actual scientific studies on MDA with laboratory animals would be quite rare.
Most pills I have taken with rumoured MDA or partial MDA contents i felt took a greater tole on me afterwards - way more out of it, confused and scattered. This psychologically makes me feel it must be worse for you.
(I completely agree that comment is silly and without foundation.)
I often get the visuals of people's faces distorting, buzzing and rippling as if they have waves on them. The funny thing is that it ONLY happens with people's faces. Not inanimate things, other animals nor parts of someone's body - bizarre.
I get this only at the tail end of a high-dose and prolonged MDXX experience, thus I postulate this is the small amounts of MDA made by the body whilst it is metabolising the ingested MDMA.
For tolerant users I think the MDMA/MDA combo pills will become the new rage. Its just a matter of getting the right ratio; definitely more MDMA than MDA; im thinking 75:25%.
The beauty of the MDMA is retained and predominates but the non-cross tolerant MDA gives the pill that little kick, which for tolerant users is often all they need to turn a familiar and not overly great MDMA experience into a full blown fantastic one.