That doesn't matter when you're comparing 2 hollow tubes of metal that aren't actually conducting electricity. Even Mooch himself has stated that the material of a tube doesn't matter in how hard a mod "hits", all that matters are the contacts and the build. Why would the material of a tube that's not having any electricity passed thru it affect the way a mod vapes? It wouldn't cuz that just doesn't make any sense. Now if we're talking about what the contacts are made of, then yes you might notice a difference, but based on 28% for brass and 100 for copper, I don't think that means that if a mod has brass contacts that the battery is only gonna put out 1volt cuz it's 28% of copper which is putting out 4.2v. Idk maybe I'm not getting it but as far as I know the tube itself doesn't affect the vape
