Here is something else to ponder about the percentages of resins. High powered pot is not new .... it has produced pretty much the same percentages of THC and CBC's over history.
Back in the 70's for instance, what passed for smokable marijuana was the males and females mixed together, along with all the leaves. A lot of that came from Mexico and it was easier and certainly more profitable to mix them. Educated smokers knew that the buds was where the resins were and began to seperate them; even George Washington made mention in his diaries that on one season he was unable to seperate the males out before they produced pollan.
It is such propaganda these days to say that "this is not your parents marijuana." Ugh!!!!
In the 60's and 70's, there were powerful strains like Columbian Gold, Thai Stick, Panama Red, creeper weed, etc....