Unfortunately, I am unable to accept your disagreement at this time, and would like to counter-disagree.
First, there is always the option of adding a kick. I personally don't see the logic in making a mech a VV, but it is an option to help with the clearos and cartos.
Second, un-kicked the performance will degrade as the battery drops regardless of using a rebuildable or not. Lower resistance heads will help compensate for this. I hereby deem this point moot.
And thricely, OP never said they didn't want an RDA, they stated they do not think they are "ready for it". To that, I say poppycock. Throw one on the order, toss it in the vape box when it arrives, watch some videos with it in hand as a reference to what the video is showing. It'll just sit in the box whispering their name until finally, it graces the top of the mech. It's the way god intended ya know.
To the OP, with the many guides and videos out there, RDAs are very simple. And in my opinion, offer performance which you will not find in an off the shelf carto or clearo. Still not interested? Try an X9, but use 1.5Ω protank heads in it. My wife likes them and they come in a variety of colors.
$6.99 X9 Protank Electronic Cigarette Atomizer (2.5mL) - blue / 2.0