Right, I mean, I'm not chemist, but one can only assume that "locally manufactured" Methamphetamine comes out as some kind of mixture of Methamphetamine, Amphetamine, Ephedrine, Residual Chemicals (who knows if this leads to a psychoactive effect). A lot of amateur chemists can make a lot of different drugs, but from what I've read, for said chemists, the synthesis up to say 99% purity is difficult, but it's almost equally difficult making that last one percent to complete, anhydrous, pure powder. Hence, the "crank" that was once produced commonly by 1% bike groups. Amateur chemists could end up with product the consistency of peanut butter often times.