13g joint would be good depending on what type of herb you put in there. I mean...i can go down the street and pick up a pound of stress for like 100 bucks or I can go and get some of the most bomb herb you'll ever smoke for $450 an oz. I would definitely do that with stress or some bunk weed haha but when your dropping almost five bills on some bomb medical kush....you just don't waste that in a joint. Biggest blunt i ever rolled was an eighth of some Super Jack x Super Skunk from the clinic and it was almost impossible to smoke the entire thing; and im talking about 3 very experienced smokers that were trying to kill this bad boy. Good herb is almost impossible to binge smoke...you just pass out haha.