If your gonna smoke alot of it and want it mostly heady I would wait till most of your heads are milky. If you only take one hit maybe a 25 percent amber 75 percent milky. I say this because a little cbn won't knock you out but if you smoke alot it will Problem is they all won't milk up before you get some amber the more amber the more stoney more milky more head high. Then dont forget a cure. The longer the cure the more it will become stoney especially if you let it go more amber. I think but can't back it up thca converts to thc then to cbn thru oxidation. CBN is a sedative. Thca can't do anything to you its not psychoactive but thc is so its why you have to cook weed in edibles. Your buds are mostly thca. Thca converts to thc when you smoke it. The part that isn't widely accepted is that I believe the conversion when you smoke it isn't as efficient as smoking thc that is already converted but for thca to turn to thc naturally takes awhile for oxidation to occur. So there is anecdotal evidence people say cured weed becomes stronger I believe that is why. So I would cure 3 to 4 weeks at least at 60 to 70f. Terpenes (flavors) oxidize and change and become different overtime if you like where a bud is at you can refrigerate and it will slow down the aging significantly just like with food. If you freeze it only do this once don't refreeze it can last 20yrs. If you do this let it get to room temp before opening jar.