i know vg is sweet im asking cuz im new and i want to know if adding sweetener to this kind of mix is going to make it sickly sweet.. oh and something more.. i make ejuice from big mouth ready consentrates on the bottle it says pg and flavors so i guess there are traces of pg in the mix but if i were to make a 70/30 vg pg bleng with big mouth, could i add sweetener or these premade consentrates propably have sweetener and the things they require to be on point already in them ???