I just have a very hard time believing smoking meth is around 37% or even 67%. To be clear we're not actually smoking it , just lettin it heat to it's vaporizing poi it and inhale he vapors . I find it strange that i can toss in a piece of meth as big as a Match head and get 2 lungfulls, verse snorting a Match head amount and not getting nearly as high. I agree oral and snorting are much better than smoking even though you need more but think about it even though you need less, you need to keep redosing so eventually you burn through Your crystal faster smoking, I believe BA is still 80-90%+. What strikes me odd is why do you need to use more meth when IVing when it has the highest BA? Also instead of Buying a rose(hollow glass tube used for smoking crack ) to hot rail, why not just get a shit ton of meth smoke trapped in the glass pile ball end and put it up to your nostril instead of mouth and inhale that way, so you can reduce the risk of possibly gettkng melted gol in your nose and burning the shit our youself, plus them glass tubes get HOT very very fast....plus there is no carb on one of them like your traditional meth pipe, I would assume a lot of smoke will get wasted out of the ends lf the glass tube ..idk??