Yea i had some back in the day. first correction id like to make, is its not like smoking hash my friend, not even close, the tar resembles hash, but the buzz is far from it, but yea basically you boil your opium to make it more pure and get rid of waxes, plant material etc. but when the solution is cooling down like when u have the opium in the slugded, just let ur bud sit in it for a while then dry it out, just be careful as its hard to dose this way because ull wanna smoke a whole joint but chances are half way through ull be toasted so just becareful man, that stuff u can od easy on. anyways hopes this helps, if not just check out erowid, they have some procedures.