Hi you are absolutelly right about the starting material, but by that 10-15% statement I meant actually the content in % in the cartridge itself .
I will check out about that tchek thing, I saw something called higrade (they sell you lens and their app) you make photos of your bud and the a.i algorythm will determine which of their trillions of pictures is your closest too. They claim only 3% chance of failure of accuracy or whatever it is called, which is the same as with lab tests that cost real money. I never found anything reliable ( any reliable review on this product). I believe the out is also the best for the taste and that you can get same quality as in if you got bit of luck and use the right soil nutes, etc.
btw do you mean low grade thc strains with high cbd are possible to obtain here in EU , I know only about dinamed with such a low thc ratio, Do you know other breeders, banks or people that have these type of genetics? thank you very much and have a beautiful day