You said the multicore wires, claptons, etc, that your doing is making you reduce nic, is it because those type builds produce more clouds, thus more juice, thus more nic? Or do think those type builds just concentrate the nic more and your actually vaping the same amount of juice as you lower nic?
My only reasonable answer is that getting a better delivery system caused me to lower my nic level from getting headaches from a nic buzz. I spent my first couple years building spaced single wire kanthal builds(26-32 gauge) since I don't totally understand the concept of microcoils and their value in vaping, did try a few but never liked them. I did a few 2 wire twisted builds and liked the vape but always reverted back to single wire.
It wasn't until I received TFV4 kits in Oct 2015 from a coop that came with a clapton coil installed in the RBA was one of the very few factory coils I have tried and I thought claptons were a gimmick build... I was wrong. It literally blew my mind to how great a vape it was. Today I vape pretty well nothing other than single core claptons with a few twisted core claptons. I built my wife a spaced 1.6ohm 28-32 clapton she vapes on her P3 and won't vape another single wire build.
Just a couple weeks ago I won a wire prize of several spools of SS, nickle, some premade claptons that are 2 different wires and a few alien claptons that are too big for any of my attys. I had never considered stainless or wanted to bother with TC...again I was wrong. Stainless wire in TC is something great and planning on a SS Temco order soon.
Bottom line is my body tells me when its time to cut my nic which corresponds along with better attys and better building. I learnt not to inhale those cloud hits and take smaller ones if I'm going to inhale.
I began DIY a couple years back cause the commercial juices were parching me badly especially once I acquired the subtank minis with ability to handle bigger lower ohm builds. I began shelving the kayfuns and protanks. The subtanks forced me to drop my nic from 18 to 12 and now 9 with these clapton builds. Juice consumption isn't a issue so I don't keep track but I will say I do vape my fair share with no outlook on slowing down, some builds are mighty thirsty vaping a tank in a very short time. I have already built a couple 7 nic juices to see if I begin to coddle my hitter and so far with these SS builds I'm going to drop my nic again to 7 or 6.