@Roaddog A lot of us that have dermopathy issues often have a little going on somewhere always. Sometimes it doesn't matter if you try to drink through it or not, the result is still the same. You just find that balance between how much you can drink on a daily basis and how much dermopathy you feel like dealing with. The best thing I know for it is what Kavalot does, use a prescription steroid ointment, works wonders.
I used to get fierce dermopathy from drinking boroguru. It could have been the grind, it could have been the root, hard to tell. When BKH's grind got finer I had to jump ship because a single session gave me instant killer skin issues. I've gotten it from other kinds of kava as well. The Hawaiians are a different story, I don't get dermopathy from them and I drink a good bit of it every day (60-100 grams strained unless I have micronized). The closest I ever got to dermopathy from GHK kava is when I went through a half pound of micronized in a few days, got a little bit of eye dryness but nothing more. So I think certain kavas could be more apt to cause dermopathy than others.