Everytime I mix i find that the flavor in my juice weakens the more I use it. I know its not vapers tounge. I sell my bottles to friends and they say the same thing. i mix 30ml bottles at a 70/30 VG/PG for all bottles, Flavors come from, TFA, Capella, and Flavourart. Even when I use 9% forest fruit (FA) this still happens. I dont steep, just make and vape. my bases are Nude Nicotine VG and Nic 50gm/ml and Bull City Vapor PG. How can I keep consistency through the entire 30ml bottle???