Forging a new future by preserving the past!
There are many varities of kava from Tonga, such as vava'u, eu'a, niua and some of them aint weak, just different. I prefer Tongan because of the smoother taste. 2-3oz to a gallon is for a cruise mix, especially when you got friends that want to "sample" over and over again. What would be your ratio to a gallon of water?3oz is about 80g, that's about 7-8 tablespoons. If it's Tongan kava then it's likely to be weaker than Vanuatu or Fijian kava (which doesn't mean worse, just means a bit weaker per gram), so that's not an excessive amount in my view. I too would feel fine the next day after this much of fine Tongan kaava. Your water to root ratio is a bit crazy though haha (from the point of view of most Western drinkers).