I recently purchased a Super-T Precise+ 18650 on the ECF Classifieds, and I received it today. I'll admit that this is my first high end mod, and I am having a slight issue with it. I ordered a couple AW IMR 18650s, but they have not arrived. In the mean time, I am using a Samsung 18650 w/ a flat top. As soon as I got the mod, I ran inside and hooked up the first rda I had ready, an iGo-S. It worked beautifully. I wanted to see what my ProTank looked like on it, and it looks great, but it won't fire. It also won't fire my VapeOnly BCC, Octopus rda, or Squid rda. Thus far, the only things it will fire are my iGo-S, AGA-T2, and a Kanger 510 Carto. Any suggestions?