reece, I knew I was going out on a limb there! Thanks for bringing me back towards the trunk.
But determining function for example: Let's say the MZ produces a thicker vapor - in general; and the PD produces a lighter vapor in general. Or vice versa. I don't know what is true and it doesn't matter to me. The point is, if one produces a thicker vapor, is that good or is that better? Which is best? It depends on the person. Right? There is a certain range within which "it's all good"; but one person might prefer thicker, one might prefer lighter. That's what I was trying to say.
Is it possible one vape might work better with drier herb and one might work better with stickier herb? Which is best? Doesn't it depend on which type YOU prefer?
So, it is possible that a test of "only function" might come up with certain observations about the function: one produces thicker vapor, one produces a heavier taste, one produces the vapor 5 seconds quicker, etc. etc..
But will this mean one is "better" than the other?
But even if such a comparison would not produce an ultimate "winner", it would perhaps answer the above questions somewhat definitively and help people decide which to buy.
But if they are both nearly equally good vaporizers, then it comes down to other factors, such as aesthetic appeal, design, etc.
OR, maybe one clearly IS better!