I didn't see the seizure coming when it came, just woke up some time later with heavy sores, weird thoughts and a scared gf. This was with maybe 1.8g. With lower doses like 1.2g I get slight electric shock like paresthesia in the limbs, which made me think this was a warning not to go higher.
Never got more than threshold effects from Kava, because of the amount of ground root required and its taste which initially smelled interesting but the taste became disgusting pretty fast. Tried alone, with milk and sugar, with mango taste etc.. nothing is able to mask this peppery earthy taste. I wanted to make extract but nobody knows how to do that.
Might be a sweet mixture though, Once I had pregabalin+tilidin+tiagabine+lorazepam and it gave me an unique and nice, dissociative trip. Don't remember the dosages unfortunately but it wasn't much of each. Think that the tilidine was necessary though as there's speculation about its pharmacology and that it binds to NMDA receptors like dissociatives.