i never seemed to get as much high for the weight then if it was in a bong.. like i could vape a gram, and after a few hits i'd have to change th e bud again (i never put a full gram in it at a time) but if i was to smoke a gram in my bong i'd get like 3-4x more out of it... the high from a vape is pretty cool tho (only had light bulb one) before i ever used it, i put salt in it, and shook it around really good, then after wards cleaned with water and let it dry over night, never got a head ache from it, the high was short lived tho, also took me awhile to get the technique right, so i wasn't burning the weed, but actually vaping it. tastes considerbally better than any conventional methods that involve actually burning it tho.