I just tried something. I cut my flavor percentage WAY down. And it still popping with flavor. I cut a bottle that was 10% with unflavored and I'm very happy. I can taste the flavors better now.
I had about 5-7ml left in a 30ml bottle. Filled up with unflavored.
I'm due to mix more. I'll try about 3% flavor and see how it goes.
Thanks to my phone, I could have posted this from anywhere.