You know Trog, I am with you on the desire for concrete, objective facts. I always like that better than subjective opinions. But not everything is a matter of facts. Tastes, preferences, what is an adequate amount of vapor, whether a draw is too hard, or an e-liquid too harsh, these just aren't matters of fact, period. They are opinions and they cannot be reduced to facts.
What CAN be factually determined are specific data. How many 5-second puffs a battery lasts, or a cartridge. Whether one device produces as much vapor or more or less compared to another device. And, if I can ever find an affordable guage with fine enough increments, how many PSI it takes to draw on one.
And for some judgements, while they remain judgements and not facts, using a consistant scale, like my 5-point system, can at least keep the judgements consistant from device to device.
It's what I was trying to do with my reviews. And I hope I suceeded at least a little.
ANd Kit, the reason many of us, if not most, harp on vapor production is, one, that the nicotine is in the vapor, so if you don't get much vapor, you're not getting much nicotine. Ruyan is different, because their liquid is formulated differently. But with most liquids, if there's not much visible vapor it means not much liquid is being vaporized, and therefore not much nicotine is being delivered.
And, two, for the satisfaction. If you're used to the billowing smoke of a real cigarette, wispy vapor doesn't seem as satisfying, even if it does have enough nicotine to fill that part of your habit. It's like eating with a stuffy nose. You're missing part of the experience, and even if everything else is fine, it's less satisfying.
It's an artificial distinction to ask whether the smoke or the nicotine was more important with a real cig, since with a real cig there's no seperation. You can't get the nicotine without the smoke.