So I thought I hit the jackpot when I found out they started making the BVC coils for my other Aspire tanks besides just the Nautilus Mini. I couldn't believe the difference when I first used them in my Vivi Nova... Wow! Amazing. Shortly after though, they started leaking. I thought it might just be my tank so I tried them in several different tanks and the same result for all of them. I recently upgraded from an MVP 2 to an Eleaf iStick 20W which I LOOOVE and at first I wasn't having any problems with the leaking, but the next day it started again. I have went through several of these coils so I know it wasn't just a 'bad coil' or even a 'bad batch'. I buy them on credible sites that have the scratch and check for authenticity so I know that isn't the issue either. Is anyone else having this problem? I've seen other forums about this but most of them are mainly about the Nautilus, not the other Aspire tanks.