Quote Originally Posted by Opie Yutts
I had this thought.

Let's say you load a bowl that has 4 good hits in it. You light the first hit, and kind of move the flame around over the bowl as you're taking the hit. The flame is drawn down over pretty much all of the weed in the bowl.

Aren't most of the trichomes burned up in the first hit? In other words, isn't most (I don't know, 95%?) of the resin and THC burned up in the first hit, leaving the other hits smoking mostly only plant matter? If there is resin hiding, packed away in the center of the bong load, wouldn't it get cooked even if the flame doesn't touch it? I heard that fire can get pretty hot.

So for a party bowl, you want the first hit, at least if you are thinking of yourself. Is my logic flawed?
I think so. I would think it would similar to vaporizing. When you vaporize you draw hot air through the weed but without any fire. When smoking, it is reasonable to assume that the part of the bowl that doesn't actually get burned by the flame still gets vaporized by the heat. There are, however, other cannabanoids, in addition to THC, that must be burned to be effective. The lack of burning these other cannabanoids is why a vaporizer high is different from a smoking high. It would make sense that the ratio of THC to other cannabanoids would go down after each subsequent hit. Your best bet is to use something like a one hitter that gets dusted every time its hit. You may need to keep packing it but you'll probably get more high with the same amount of weed in the long run. Plus everyone gets their own fresh hit.