sinister.
from what i understand (mind you i havent had the PRIVILEDGE to try methamphetamine yet, but i've done tons of d-amphetamine...i'm tryin to get high tonight, and i was snortin some earlier...) meth is just stronger adderall/dex that you can smoke and shoot
thats the main attraction of methamphetamine to me, you can smoke it and you cant smoke regular amphetamine (i've tried....)