Got one without, and one with...will probably remove it on the second one (per Lord Davon's advice). I do agree with LD that when the juice gets down to the bottom of the window...it is time to refill. Wicking gets a little iffy at that point. I tend to keep mine on the ProVari....sitting straight up....so the wicking probably suffers when the juice gets that low. I'm thinking that is the source of the few dry hits I got on the first one, and is now starting on the second. Never had a dry hit while they were fuller.