Jeff, Don't forget to use a little Vanilla and or Cream as well 1-2%
To make Fruit pop I have used Citric Acid, Sour, and Lemon juice (out of the yellow bottle) all one drop per 5mls to start with. Some one posted that they use one drop of popcorn for Strawberry.
Thanks for the advice!
Bill's recipe already contains vanilla and cream:
Strawberry - 8%
Sweet Cream - 4%
Vanilla Swirl - 4%
Cotton Candy - 2%
Sweet and Tart - 2%
I have some TFA Sour and lemon juice, I'll give them a try.
Jeff