I realize this question cannot have an answer. Too many factors and variables exist. However, just for my/our amusement, let me ask my fellow stoners to speculate (and speak from experience if they have any). GREEN DRAGON SUGAR How much would it take to get nice and high? 1/4th oz. of weed (mid-grade) goes into half a cup of everclear and half a cup of everclear goes into a cup of sugar. In other words one cup of the final product contains the equivalent of a 1/4, 1/2 cup contains an 8th, etc. Pretty regular smoker with a fairly high tolerance. Any guesses? Once I try it I will report back.
A gram or two should be enough to feel something. Let's say the mids are 10% THC, so one gram would have 100 mg THC. You will need 50 to feel something and 100 should be plenty.