@G_Chem's hyper-sexual MDMA experience was sent in to Ecstasy Data and no amphetamine or methamphetamine was found in the crystal.
I do not doubt that adding speed to a roll changes the quality of the experience. I have taken pills where the orange marquis reaction was there as well as the purple MDMA reaction, and they were definitely different than the MDMA only pills. Sexually, for me it resulted in some oddities that were not usually present in my MDMA only rolls, but I can't say that I found it preferable to the typical sexual rolls going around at that time. Then, there were the annoying characteristics of not being able to sleep and sometimes intense paranoia and anxiety on the day after.
However, I really feel that for clarity in this thread we need to stop floating this hypothesis that the reason MDMA felt different before was speed, or the reason that MDMA is sexual is speed.
Amphetamine and methamphetamine are known compounds that labs are looking for. I trust that if there was either in a sample, Drugs Data would see it and identify it due to the fact that they are already looking for it.
None of the samples I sent in from 2000-2005 had speed in them, and G_Chem's recent and classic "pants tent" experience has now been confirmed to be MDMA only, as far as the lab can tell.
So, we have multiple pieces of evidence that show that this is not the missing puzzle piece, and I feel like it confuses newer contributors to the thread.
Not that I don't think it is interesting to ponder the variables of various drug mixtures, I do find that fascinating discussion, but I don't think adding speed to the mix is the answer we are looking for.