I was wondering some flavors,such as flavor west has concentrated flavors like their kiwi. How do you use a concentrated flavor verses a flavor that doesn't say concentrated. Am I supposed to dilute it in vg or pg liquid before I use it then use like say for example, if i want to use 5% kiwi in a Strawberry kiwi vape. Am I supposed to dilute it then use the dilution at 5% or just use 5% right out of the concentrated bottle. Sorry just a little confused. Thanks