I had problems with one of my Nautilus's sticking no matter how loose I left it...one day I forgot it in the car and thanks to the temperature changes it dumped the juice out my base when it flooded the coil...I went to do the normal pliers with a t-shirt method and it wouldn't let go like normal...finally I lost patience and tweaked it as hard as I could and the glass shattered before it gave....my best advice is get the metal or metal with glass thank...it's worth the few dollars to save the headaches...I bought one from the guy on ebay that started making them before aspire offered them the first time VaporJoes pimped it and let it sit and collect dust for months...I wish I hadn't because that thing works like a dream and never gets stuck. As long as I top it off once a day I never have to worry about it (I carry 2 adv's because I can't vape just one flavor all day,) and the tank has never been better.