I use e-juice me up calculator from breaktru, I like my flavors strong and sweet. These are what works for me, you may want to change the percentage according to your own tastes.
P.A. Strawberry - 7%
P.A. Waffle - 13%
E-Z Sweetz - 1 Drop per 3 ml
P.A. Strawberry - 7%
P.A. Waffle - 13%
E-Z Sweetz - 1 Drop per 3 ml