I was a Vivi Nova bastion, now I'm a Vivi Rebuildable Tank bastion. yes, its a tough sell because you have to mess around with a coil, but I did and was able to learn how to play with it to get the best vaping experience yet. It took about 5 coils to perfect it, but now, this is King. At first, I got the worst hit out the box and immediately chalked it up to a loss. After spendnig a few hours researching, I learned how to modify the screws and wick correctly, afterwards, I have the best vape yet. No leaking, smooth flavor, incredible plumes (makes it harder to vape at work). Also, I got another that I intend on modding, i.e. testing it out with a SS Mesh wick. Good thing is, I'm not spending time finding the right atomizer anymore, I'm spending time finding my favorite flavors on a device that that is giving me true flavor.
Here was my keys to success: (i) the screws come completely tightened down, unscrew them until they are raised higher than the coil (ii) I took a tiny screwdriver and shoved it through each hole for the wick, this broke up the wick allowing more liquid to come through, however left full wicks above where the screws are. (iii) I noticed a lot of smoke coming out at a low voltage and a harsh throat hit, so I lowered my volts to around 3.5 whcih was a mistake, I keep it at 4.5 on 1.8ohm coil and its smooth like butter.