Right now I am using KangerTech EVOD with different flavored juices at 3 mg. I've been vaping for approximately four weeks, no regular cigs at all. I was a pack and a half a day Marlboro Medium smoker. I am enjoying vaping very much, I can breath better, have more energy, etc. I was thinking of upping the mg's to 6 or possibly 12. I tried an 18 mg. on a friends and it hurt and made me cough and gag. I also have a couple of friends that are using the iTaste VV V3.0 with Ce5 clearomizers. Any thoughts or advice would be most welcome!!!! Thank you!