Thanks for the suggestions, although I think you must have missed where I've said (a few times I think) that I already DIY and have a fairly powerful subohm tank.

In fact, at least one person thought that the switch to this set-up was triggering for me, just because it was a change in what I was using. Clearly I need more nicotine than I have been using though, so I need to figure out how to get it in me without overdoing it or choking myself. That's the real problem, but I like the suggestions that have come up to continue using my subtank with the low nic juice and having some higher mg stuff in an older, lower output set-up like I was doing before. I hope this doesn't sound rude at all, like
how could you miss that in my mess of posts here because that's not what I meant at all. I just do happen to DIY and have a tank I like and I think my next relatively significant spending purchase on hardware will be an RDA.
Not rude at other, my fault for not reading it properly, anyway, good luck, we are all here for you
Pretty certain that's what I'm going to do.