So i have a vivi nova and i thought it worked great till the end of a work day when it tastes like burnt .... and wont hit well. I have tried the 3 different ohms it came with a bought some more 2.4Ohms and all do it. i couldnt tell you which version i have but at the end of the day all my liquids end up looking like this http://i.imgur.com/lRHbE.jpg am i vaping to much i vape pretty heavy at times.