I know where you coming from, having used a pro tank 3, always having to buy a pak of heads, and having 2 or 3 not work. I gave in bought a Igo-L RDA, had my local b&m build my 1st coil and I was in haven.
I actually build my 1st solo coil just 2 days ago, its running at 2 ohms, and I'm getting...