^^ dont vaporize it man.. the most efficient way to smoke a proper dose, IMO, is to pack 1/3 of a cone of pot (of green tea leaves if you get drug tested, mabey make it a 1/4 of a cone as tea leaves can be harsh) into a bong, chuck in 50-60mg of nice dimi then sanwhich that which another 1/4 cone... then you roast that fucker as slowly as you can and when its ready to pull through, suck as hard as you can and try n clear it all in one hit.. try n count down from 10 and you will be blasting off once you hit around 3 but yeah, aim for holding it in for 10 seconds... enjoy brother :D