Many of those who succeeded here with e-cigs have made e-smoking a hobby. We're like the hot rodders and custom car guys of the 50s. Yes, we can get more vapor, more nicotine, more throat hit.
But that's not the point of his reserach, or any research likely to be done.
Buyers of an alternative to a cigarette should know that an off-the-shelf product will deliver a known, safe quantity of needed nicotine to satisfy their addiction. It must be manufactured under known quality control conditions, have the same amount of nicotine as stated on the contents, and should be every bit as easy to use as a tobacco cigarette.
Pick it up, suck, inhale to lungs, exhale.
All of the fiddling and garage modifications mean nothing to anyone but hobbyists. Don't expect or even ask a university researcher to follow your modifications down a dark alley to a speakeasy with a peephole. We are getting far afield from reality in some posts here. Whatever works for you, do it. But testing will involve a stock product that either works, or doesn't work, with no learning curve or product modification needed. That's the real world of the non-hobbyist.