I don’t know if this helps, but I will suggest it. I mix 5-10 ml samples off all of my flavors based on the median single flavor % and notes people include. I can try them and see how they taste & how strong they are. And, if I am not sure about a recipe or flavor combination/substitution, I add the sample juices to my tank in some way proportionate to the recipe. (It’s not an exact science. Since all my sample bottles are the same, I count drops). I carefully shake my tank a bit and try to get the flavors combined as best as I can, they tend to mix easily. Then I vape it. I can usually tell if my substitution works, or if I think I will like a recipe. The flavors are all diluted at different %'s though, that’s the variable that will change the exact flavor between the recipe and a sample tank like this. Like I said, it isn’t an exact science, but can be helpful for little experiments for seeing if something will work.