I just got a leather sleeve from Serenity Leather for my VAMO in vapemail today so I put it on to see how it looked and felt and when I tried to vape it nothing happened. So I checked the voltage, battery and then I checked the ohms. It read 9.9Ω !!!!! So I put the Protank on my ProVari and got an "E8" error..."Converter has detected a fault - Contact ProVape if the problem persists". So I got my ohms meter out and it would only display a vertical line in the first LED segment. So I decided to change the coil head and when I took the bottom cap off the head was completely out of the cap, just laying in the tank. So I screwed it in and rebooted the ProVari and tried it in my VAMO and now all is well. Don't have a clue how it happened. I guess the "vape gremlins" go into my VAMO and unscrewed the head because it was working when I turned it off and put it in my rack just a couple of days ago and there wasn't a leak to be seen. (I'd start another paragraph but I can't figure out how to move the cursor down). I might be too soft headed to be a vaper. Anyhow, just a heads up.