May I ask, are there any other obvious substances that effect these potassium/calcium/sodium channels in the way postulated for Kava e.g. regulate activity? I want to set aside the GABA-specific properties for the moment.This is probably not a bad thing to try. And it's awesome you are having so much success with it, @GBB. Keep us posted.
Overall, this seems safer than Benzos and on some islands, like Fiji, almost everyone uses it at least semi regularly (some people have occasionally reported liver damage from it, though, so I especially wouldn't drink with it).
A suggestion though: I have had Kava that was made the traditional way years ago (before tinnitus) and also taken Kava pills. I couldn't "feel" anything with the pills but when it was made from the powder in a Tanoa and soaked for a long time and then strained (i.e. made the "traditional way"), I could feel complete tranquility and a different mental state. It just felt much different and I could tell I was getting the full effect vs the pill which did nothing though I only took one.
Part of me wonders if some people would get a better reaction from traditional Kava.
I would try it myself but I am concerned it could worsen visual snow since it has ion channel effects.
I'm thinking if I could layer multiple substances maybe I could come close to actual silence - at the very least I think I'd like to experiment a bit more, but I am not sure where to start a conversation with my neurologist.