Yes acolon is right about the rue, 4 grams maximum. Ive seen a lot of folks saying things like ten grams, dont know where they get this number from :?  If your mimosa is inner purple pink and good quality 8g could far too much. swim would go with 2-3g rue and 4 grams mimosa, though if its outer bark maybe the eight would be a good place to start. Better to ebb on the side of caution, you could end up in a bad place for a long time.