I'd also buy the 4 or 6 liquids. Or at least I would have before I got addicted to the 11's and began thinking of going to the 18's...lol. Seriously, I'd definitely buy them. I'm a heavy smoker but more for the habit really than the nicotine and I'd definitely like the lower nic carts so I could puff away all day without worrying about increasing my nic addiction.