My favorite when I was super-sub-ohm was a pretty simple 24awg NiChrome Parallel Dual coil hitting in at about 0.18 to 0.2ohms using a Sony VTC3 on a mechanical at the time as regulated mods at the time were barely breaking the 30 to 50watts barrier. I've since moved up to about a 0.3ohm on a dripper using basic 26awg NiChrome dual coils, maybe a dual coil twisted 28awg from time to time, on a regulated mod in the max 80watts range, but most times am on a single coil RTA in the 1.4 to 1.8ohm range at about 8 to 10 watts, basically where I started with Ego style batteries and Clearomizer tank stage, the analogy of K.I.S.S. (Keep it simple stupid), though I rarely use pre-made coil heads much these days, as 90% of my tanks and such are rebuildable or have rebuildable coil assemblies. My experience, once you move up past a single core Clapton coil, even on a regulated device, is the tipping point of going down hill on battery efficiency, multi-core Claptons (Fused/Stapled/Staggered) and other fancy builds, sacrifice to much power for a 0.1% to 0.5% increase in vapor increase. Being batteries are the safety concern in any mod, stressing them more and more using exotic builds it is best to be as gentle on them as possible as they are doing all the work, they are horses pulling the wagon remember that.
As far as my super-sub-ohm stage I was working in a vapor shop, did the sub-ohm stage for about 18months, the cost in batteries on a mech as well as my juice consumption during a day at the time was 8 times what I am doing now, cost outweighed the cool factor in the end. Don't get me wrong, I learned a lot during that phase of my vaping career, from battery safety, what battery model could do what, as well as coil efficiency, the balance between a clouding build and a flavor build. I'm a flavor chaser myself, best flavor devices generally have half to less the airflow of a clouding device, and a reduced vapor chamber (where the coil and wick are) which concentrates vapor and flavor into a smaller area, where a clouding device the vapor needs to expand and needs lots of fresh cool air to make more cloud, as the analogy you are trying to do what mother nature does on a daily basis, create the perfect storm in a small space for clouding, warm humid air plus cold or cold humid air plus dust or particulate, vortexed and mixed together = clouds. No one size fits all, we are all different where our happy spaces are, especially in vaping, that you are experimenting is fine to find that happy zone.
*Remember a parallel and twisted coil are almost identical, twisted is just twisted, parallel the two or more wires in the coil are flat side by side.
