i measured 30 mg MET freebase and gave them in my new smoking bubble. since i never consumed any substance this way before, i had my trouble freebasing it: after heating, it melted, and then vaporised, but while doing so, the liquid MET seemed to run away from my lighter. thats why i only inhaled maybe the half or so of the substance, but this already gave me a distinct effect, which was very distinct from my usual tryptamine-tryps: there were no mayor visuals, but the outher world seemed completely abstract to me. very hard to explain, but a very distinct headspace. this lasted about ten minutes, after which i felt somehow stoned. i smoked marijuana afterwards, so i can't say how long this lasted. i also tried to vaporise the leftovers in several small hits afterwards, which gave me little effects again.