I'm not much on cola vapes, and my stock is mostly TFA, but I have 2 archived (obtained from -somewhere else-). The first one didn't appeal to me, and badly etched a plastic tank, so caution on that one if you're still using plastic. I posted it mainly so you could see the ratios, which seemed ok. The second originally had (I think) cherry in it as well. I deleted the cherry and liked it better than the first one (TFA Cola has a really strong citrus element I'm not wild about, CAP is better to me), but not enough to put it into regular rotation. Actually, I'm going to try it again. I last made it over a year ago, hope my CAP Cola is still good. You could easily sub CAP VBIC, I think.
(HueHueHue) Vanilla Coke
TFA Cola 8%
TFA French Vanilla 5%
TFA Vanilla Swirl 6%
(MunsenMixer) Vanilla Coke(?)
CAP Cola 6%
CAP Simply Vanilla 5%
- Sweetener 0.5%
TFA Vanilla Bean Ice Cream 5%
If I were on your quest, I'd toss out the CAP and TFA and start with FA Cola. I just wasn't wild about either of them, both taste more like flat cola syrup than Coke. Maybe equal parts FA Cola and one of their vanillas.