Hi all, I have never purchased anything from Tasty Vapor yet, but my thing is I have never actually mixed my own juices and was wanting to know how the doubler pack works. I realize I mix it but how do I know when to stop at say 16mg or 24 mg and still keep the flavor. Are there tricks you guys use, any advice on this matter would be great, I want to try out the juice because people rave about how good it is, but this is the onlt thing holding me back, the not knowing part.