I use the ego-c by joyetech and LOVE IT! But I am still not quite sure if I am using the ratio's properly. I found an awesome e-liquid calculator for my i-phone called Liquix. I have reviewed you tube videos for countless hours and most of them are either promoting a product or,"Winging it". I have everything I need. right now I am pre-mixing a 60/40 PG/VG blend and using 100 mg PG based nicotine. I calculate for a 24 mg nic outcome and I have been shooting for a 46% flavor based on a guy named,"Phee", on you tube. I hate this winging it stuff. When or if I ever figure out a successful and specific science for the best vape, I will post and probably do a first you tube video just to try and help the more detail oriented individuals out there that like specific parameters and have no where to turn to start their own successful and personnel e-liquid lab. Can anyone provide some guidelines in percentages for mixing. And how does water enter into the equation? Should it be used and why? Some flavors have water and alcohol in the blend primarily consisting of PG, but they do not list the ratios so that I can calculate it into my mix...FRUSTRATING! And I don't know if I should with the water and alcohol being in it. I've heard that you need no more than 20% VG for good smoke. Some use no more than 10 to 20 percent flavor and I can understand the difference in flavor ratios depending on the intensity of the flavor. Any Vets out there...Please Help!!!

