Quote from: 5032 on November 05, 2012, 03:47 pmI only asked because they sell 4-FA as well, apparently it feels like d-amp and it burns like 'fucking hell that's not going up my nose again'. My scam sensor was flickering - it's unlikely to be d-amp and 4-FA seemed plausible.I've never tried the 4- and 3- variants of the fluorine substituted phenethylamines (erm, not a chemist, but I think I got that right, heh), but I've usually seen them compared to the more psychedelic amphetamines (that are almost nothing like speed/meth -- MDMA/ecstasy, MDA; those kinds). 2-FA and 2-FMA are the only ones I've seen compared to speed. This is just second-hand anecdotal stuff, but I'd think the difference would be pretty apparent to anybody that's tried real/decent speed. I don't think somebody could get away with selling 2-, 3-, or 4-F(M)A as d-amp. Suppose that wouldn't stop the occasional person from trying anyway, though...Enough amphetamines -- no matter what quality they are -- will give you a headache sometimes. I had to take a couple tylenol for one earlier myself :)