I already have that... just not in production yet. All it is is an extra 1/2ml of pure cinnamon flavor. I am not a fan of dropping one flavor into a bottle and calling it my own. There just seems to be kind of a ripoff nature to that. Because anyone can do that, its the time and effort and money put into developing a balance of flavors that someone should have to pay for, not drip drip drip.
Like my Berry Flavors, they are not straight from the bottle flavors and I take some pride in that

and
Lemonade is complicated... and I am SO happy people like it so much.
In fact I have a couple of flavors I want to put out but they have the exact names of some of the flavors that the flavor suppliers already sell in bulk... even though mine are a different combination, I got the same result, so it wouldn't be right for me to sell them.
Sweet Tarts is one example, I have a great sweet tart candy flavor that I adore, but you can just buy it straight from TFA, so there really is no point in me selling it, I'd feel like a ripoff artist.
Buy some VG and PG Nic mix (from me of course

) and then add a few ml's of the flavor.
Bang! Close enough to mine.
My CinnaMint (I hated it at first has grown to be my #1) and it seems now that I am stuck on cinnamon flavors like some of you.