So I made iso in the normal manner, frozen 99.99% iso, frozen Purple Barney bud, pour iso onto bud, exposed it only for ~30 seconds including filtering time, and I evaporated off the iso but I wasn't satified with the result. It was still too dark, so I then dissolved it in hot everclear, then froze it overnight. This was supposed to freeze out the waxes while leaving the THC, and it looked like it worked since I got black tar on the bottom and nice, clear, golden colored alcohol which evaporates into a sticky gold colored substance. While this was still dissolved in the everclear, I poured it over some bud that I had dried until crispy and coated the buds well, then dried under a fan. The bud now is certainly stronger, and gives you the kind of head high where you forget to finish the bowl because something else has distracted you, which doesn't happen as much with the un-coated bud. It also smokes very cleanly and smoothly, no coughing. But I am also have left this black tar-like substance that if I dip bud into it, gives me a very intense body high and extreme couch lock, with almost no head high. So what the heck is going on? I had read on another forum that the ethanol step makes the useless waxes fall out of solution so they can be filtered off, but from smoking it, it hardly seems useless. Thanks for the help.