mel - The butter sticky is pretty detailed. The info BobBong presented seems to have been strongly verified. If you decarb the weed before making tincture you are making Green Dragon.

I have confirmed that cooking the butter at least 22 but not more than 24 hours results in stronger butter than cooking 8 to 10 hours. I have not tried cooking the butter more than 24 hours.

I have seen a wide variety of information on making tincture and even the Green Dragon thread needs some cleaning up. The original recipe by Master Wu has the decarb temp too high. Also the amount of time to soak is from 20 minutes to several months for tincture or Green Dragon. I have only had tincture made from weed that was not decarboxilated. The weed was in the alcohol for 2 months then strained and soaked another two months with fresh weed. The results are excellent. I have never tried making Green Dragon but I have a bottle of 151 and plan to give it a try.