the only cannabis sub that I have tried that works is wild dagga, klip dagga or maruanilla
they are from the motherwort family
they give you a 10 minute light high from just a few hits and its well beyond placebo
the strongest is the klip dagga

most of the herbal mixes you can buy are garbage
damania sucks
passion flower sucks unless you make a tea and use it for the maoi purposes
you need about 80 grams though