I disagree with you about the conductivity part. It makes no significant difference when it comes to how hard a well-engineered (notice how I never said anything about being high end?) mech mod hits after it's cleaned, and neither does your or anyone else's penis BTW. The reason why the conductivity matters not is because the total surface area of the patch, which varies with every button press due to surface irregularities in cohort with arcing damage plus variable movement and mechanical stress on contact make, is still the dominant factor by an astronomical huge margin.
To better understand how the resistance is affected by the contacts, think of the contact patch as a bunch of conductors, or irregular-shape "wires" hooked up in a parallel config. The areas that separate them spatially being where the two metal surfaces pressed flat against each other do not touch. In a well-engineered, properly maintained, cleaned, mech mod the combined thicknesses of these multiple "wires" is still going to be so thick compared to their individual lengths, you might just as well be thinking of, what? An 18g single piece of wire that measures something like maybe only one hundredth of a millimeter in length? It doesn't make a difference what metal type the piece of wire is made of. Don't want to believe? Then go ahead and calculate the resistance of a Kanthal piece of wire following the aforementioned example wire dimensions. Next, do the same for SS 316L using those same wire dimensions. That's right, bud... the difference in resistance resulting from the metal type is still orders of magnitude too small for any human to be capable to feel that effect by vaping. So there's your reality check. Well-engineered just means the contact patch has to be a little bit bigger than your penis. That's all.
P.S. - What I don't like about that $66 Arcless beside the way that it looks is, Mooch posted a video the other day, showing that the Arcless, errr... hmm... how shall I put this essentially? Alrighty then. It
arcs.