Indeed, I bought some Amplified Farms Super Sour Diesel at Green Cross SF a couple of months ago; this is a sativa with 39.2% THC. When I checked their website again recently they had the same strain with a bit less potency, but I recall it was still 35-36%.

I have bought lower potency flowers when they were on sale at a good price, but I prefer the stronger stuff since I can use that much less of it.

BTW, isn't it interesting that we can talk about this in public now? It sure is different from decades in the past where we had to use code words on phone calls.

The code word in my circles was "programmer's fuel"!