I'm sure that is an urban myth. The pot I grow is around 19 percent THC, pretty stony shit. I've heard of 20-30 percent pot but have never experienced it. Like I said, once you have attained the 15-20 Percent THC level, plenty stony, it then becomes a matter of size of Buds and taste. These things take longer to perfect and command the premium bucks. At this stage of my agronomic venture, I can't command top dollar because I haven't moved to the perfect bud and taste platform. Hey, I'm working on it. I'll just say this. My friends like it. Growers in my area that have those big beautiful fat buds are getting 400-500 an Oz. Next grow I'm gonna try Big bud, a fast growing commercial line that has 12-16 percent. Might be less stony but more commercialy viable, isn't capitalism wonderful,~LOL~. Selling less for more, the iron clad rule of capitalism.