Im pretty new to the vape circuit I presently have an Ipv v3 box and build my own coils I prefer to build in the parallel mode as I get huge vape clouds.... Yes I'm a cloud chaser.. I have a few RDA's including a twisted messes a Velocity a hennya postless and an Industructible.... the Indestrictable is built with a single "zipper coil running at .16 ohms....