I was looking into the Vivi Nova tank. Is there a difference between the Vision and the Smoktec version? Which is better? I have the Iclear 30 and the Pro tank and both have worked great at times and have sucked at times (flooding in the pro tank and juice in my mouth with the Iclear 30) When they work they work great, but seem to act up more than I wish. Is the Vivi Nova a worthy option or can someone maybe recommend another tank to try? Thanks a bunch