It's been a bit hit and miss for me. I had a 1.7 coil going that was working pretty damn well, but i wanted to get ohms to about 1.3. So I recoiled it up, and still getting dry hits occasionally. I have tried the wicking method on page 1, as well as just very simple builds, all work pretty well.... Just not perfect yet. The trick is getting the right amount of cotton, which I am having a hard time doing. And once i install wick/coil i throw the Virus or Bettleguise in there and refuse to empty the tank to rewick it. So I just burn thru the tank and try again hoping to find that sweet spot for me.