I enjoy reading everyone comments. I've been making my own daiamna mixed with first. jwh018. waiting for a the right spray bottle. when i got one it turned out to be industrial big, for the little amount of mixed to misted over the substance;2 grams ended up costing like 90 bucks free shipping enough for like 70-75 grams of leaf. The sprayer didn't work right, I practicably spill and dripped it on there, figured i screwed it up. But no, after it was mixed and dried, it impressed me. A next batch of 18 and 73, gram each mixed with the same substrate. You dissolve the power in bout 40ml or more of acetone, pure. and once mixed and dried for a couple of days airing out all of the acetone is gone leaving good quality smoke. I guess the pure 18 is a little more intense and squirrely. but still pretty similar with different grades of real grass.
I started this endeavor with kind of a experiment of cleaning myself out, but cheating I suppose. Regardless I've got test strips for thc and after now, being a good thirty days, I still test positive. I read something about jwh18 has some effect the slowing the metabolism of drugs being purged from the body. So maybe it just takes longer to leave my system. Either that or I picked up some daminma leaf for 10 buck a pound on ebay that has some kick ass thc in it.
Either way, I do like the grass, but. One thing about it, the effects are pretty much the same in my opinion, and cost a lot less to have bout 100 bucks for three ozs quality incense.
As long as it's mixed I don't think you have the danger of taking too much. Although darmina leaf is harsh.