I guess I should be throwing out TFA testing as my barometer for DIY, and anyone who uses them for their juices. How do I know they are truthful, valid form of testing, etc. Kidding aside, I am more concerned about coming taxes, and licensing fees imposed on anyone selling vape related products. Who knows, some of the favorite places I buy from may not be in business for long. I accept some level of diketone exposure. But nice to know there are places that are dike free (if true), or show how much they have in it. So I can choose when and how much to indulge. just like how I watch what eat, but pig out once in awhile.