Where's the best place to get these? I am asking this because I have noticed that different stores have different quality of replacement heads (I use a 2.4ohm) and I am sick and tired of replacing my heads every couple of days orso!!! I've been using evcigarettes.com btw and I was just wondering what's the best place for good quality replacement heads and/or Vivi Nova's? I don't really want to switch from the Nova because I love the way it hits, it just is really annoying to have my coils burn out all the time 
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