I think this is a noobie question for someone who has been vaping for 4 months, but if I take 15ml and add it to 15ml of another flavor and both are 12mg, is it still 12 or is it up to 24? I buy Fuzzy Navel and Orange Cream from Vaporrenu and when both 30ml bottles get down to half, I mix them together. So which is it? I honestly have no clue!! Thanks!