I took your recipe and modified it a tad.
7 ml 36mg PG nic
2 ml flavoring
0.5 ml 80 proof vodka
1 ml VG
2 drops splendex
(10.5 ml of 24 mg liquid)
I made one batch Mountain Dew and one batch Red Bull.
They are ok, a little weak on flavor, but maybe they will improve after they sit...