I've always found freebase pipes to work the best for this type of substance. Its basically a glass bowl with a small airhole but otherwise no opening(unlike tradition pipes), place the material in the bottem of the bowl and slowly heat up from the bottom, the flame should never get anywhere near your material, then start to suck out the smoke when it starts to evaporate. I've actually made a few pipes in my time, get a glass tube (chemistry, cigar, etc, the thinner the better) and a propane torch heat up the end blowing into the tube end to make a small circle at the end of the tube, the more round the better. When its suffeciently round for your liking heat the very very top(90 degrees to the stem) for your airhole and blow hard to make the hole, it will usually pop as air suddenly escapes. The perfect pipe. Its been my experience you need much less material to get further with this type of pipe.