I quit analogs over 4 years ago. I love electronic gadgets. I started vaping 7 weeks ago, and I havent a clue even what heavy vaping is. I have a Screwdriver MKII, and a Tornado tank on it (Totally Wicked). It holds about 2 ml of juice. I started with one tank per day, and have worked my way up to almost 2 tanks per day. I saw the how much do you vape per day poll. That me feel better. The thing with vaping vs analogs, is once yer filled up and ready to go, you can hit it any time. No lighting up and having to finish or let it burn up. I only use 11/12 mg juice, so I guess that's on the light side even at 4ml per day. Any thoughts?