Well I'm just getting started and borrowing (stealing) other people's recipes right now for starting points.
BUT have found two that went from 10ml samples to mixing 30ml bottles.
1 for me and 1 for my husband.
All TFA flavorings
Juicy peach 7%
Strawberry 8%
Apple 6%
Husband loves this one, don't have the origin but whoever they are Thanks!
Menthol 2%
Creme de menthe 7%
Sweet cream 8%
Koolada 2%
This is my favorite right now, have made this at least three times now in 30ml. I use to vape 3 or 4 flavors a day.
I vape this almost exclusively now. Think this is a Uno Mas recipe.
If you know anybody that is a menthol smoker you are trying to help start vaping.....this is the flavor that might help them.