I'm not a cloud chaser and I don't sub-ohm. I have a bunch of RDAs that have three posts and are made for dual coil builds, but I mostly use single coil RTAs. I guess that I could try to fit two coils in an RTA that is only designed for a single coil, but why bother? My target resistance is 1.25ohms on a mechanical mod so I would need to build two 2.5ohm coils to meet that resistance in a dual coil build and I'm sure that the ramp up time would be horribly slow. I mostly use 18350 batteries in a mechanical mod and I already go through at least three batteries a day, so building at a lower resistance to address the ramp up time could be potentially unsafe on an 18350 battery, would definitely reduce my battery life, and would definitely have me going through more
juice - none of which are of interest to me. I only use dual coil builds in my dual coil RDAs on a VW device once in a blue moon. If I use an RDA at all these days it's a small single coil RDA that I use to test DIY flavors.