Montana Sen. Steve Daines said his state used to have 'homegrown' meth, but now that it's coming from Mexican cartels it's more 'pure'

You gotta have very good connections though, otherwise by the time cartel stuff gets to you it's been cut with god knows what. Some trailer park junkies have a surprisingly high sense of responsibility for their customers too (other than selling them meth) so it's entirely unpredictable if you're going in blind.