Found some bottles, and made some dilute of the Cinnamon Churro (FW), and Chocolate Fudge Brownie (Capella).
I mixed 4mls of pg with 1ml of each said flavoring. So, 20% of actual flavoring per drop, I suppose? Or, 1/5 of a drop
Added 1 drop into the above mix, and there is a slight change. I went gun-ho, and added an additional drop

The problem is, I believe, that this is simply just not a good cinnamon to use in this recipe. The dough-y flavor comes out a little too much with 2/5's of a drop. I want the cinnamon, but no dough-y flavor. So, I will be purchasing some straight cinnamon flavoring (hopefully not a red hot, lol).
Since this blend is quickly becoming a grab-bag of obscurity, I will now add 1 drop of the diluted brownie... interesting. I thought I tasted the brownie for a moment, but it is hidden well within the plethora of what-not going on in the blend

Adding another drop of coconut... Holy moly, there is a lot going on here! Heh.
Final result:
3 drops (VZ) Black and Mild
2 drops (VZ) Coconut
3 drops (TFA) Smooth
1/5 drop (CAP) Chocolate fudge brownie
2/5 drop (FW) Cinnamon Churro
By far one of those most eccentric things I've mixed, that isn't horrible, to date

It's actually vapeable (now). I will revert to my standard Double RY4, and allow my taste cells a moment of peace. I will return to retry this probably tomorrow morning. I might wake up and think, "What on Earth was I thinking???", or perhaps it might still be not so bad. Time shall tell.