Black Stone and Amnesia Stone99 were the hardiest Autos I've run, took immense stress and still produced. I would say their medicinal efficacy was superior. There is plenty of thc, but there's other cannabinoids at play which reach spinal pain that other autos never could. I would love to see the numbers to confirm, but even without percentages I know they helped in the same way as high cbd strains. Anxiety, swelling, spasms, poor appetite, sleep deprivation, Black Stone addresses it all. Sure they are stout, but they are nice and wide, wider than they are tall. It has no problems filling a canopy. The terpenes on Black Stone were the most intense I've experienced, and AS99 had incredible uniformity. Strong muscle relaxants, with a wide terp profile. I enjoy euphoria like everyone else, but Stone's work provides the relief from pain.