I'd have to say 2-fma has the best mood boost/creativity and 4fa has the body high, 4fma the empathy.
but 4fma and 4fa have tiring effect, and sometimes too much serotonin.
I'm looking for the best one to match with 5-apdb and not get any sort of serotonin reaction.
but also counter the sedation well.
I have combined 6-apb with 2-fma just fine, but it wasnt very stimulating, the 2fma definately made me stop rolling around on the floor gurning off the 6apb though.
I was thinking possibly 3fa but I also hear reports of 3fa just making everyone jerk off (like 4fma can do..

) for hours instead of anything productive. but also that it has the body high of 4fa, which 2fma seems to vastly lack?
Only 3- subbed stimulant I tried was 3-FMC which was pretty god damn stimulating at 8mg dose, moreso than 2fma is. but I know that usually BK/cathinone cousins to the amphetamines usually have higher norepinephrine to dopamine ratios.