I am a couple of weeks into my protank, idk it seems quite leaky, I find when I am vaping it and it leaks a bit onto the battery I get a poor vape, and by that I mean it has a wicked hard throat hit and almost no vapor? It weird. But when it's clean and dry it vapes pretty good. I am using 2 ego batts, 650 and 1000 mah non twists, waiting for my VAMO to show up.