So you want to keep doing it with the ePen ?
It sounds like you have had more success with pen, but your first plastic box and tin foil was really a bad pipe lol, then I do'nt know if you mean oil burner, like the one to vape the cannabis waxes or 5 MeO DMT bufo alvarius secretion. Also, you forgot you must keep it in for 15 seconds or 20 whihc make a hell of a difference, it is the easiest way to vape, as it doesn't really require any smoking or vaping technique. I did breakthrough with changa in GVG and changa inna bonga. I'd like the pen too for different reason, to microdose or when I move out for few days and would like to meditate in countryside, mountains or by the beach...
the easiest way to breakthrough with smoking it with little glass bong, like I used to smoke salvinorin A extract too. Changa, you hit without burning at first... then you end up burning it and hold it all in for 15 seconds ..
Exhale and usually you may let the bong in safe place. If you see in five minutes it isn't enouhg you may redose.
Smell like tea n,n spirit !
Toke the toke, and walk the walk !