Disagree about vintage drums favoring lower tension. In my observation, they favor HIGHER tension -due to the fact that rounder edges provide more surface area for the mylar to come in contact with...and, as we all know, vintage roundover bearing edges are anything but precise! So the tighter you snug the heads up, the better the contact they make with the entire bearing edge surface -lumpy or not and making a better seal...thus, favoring higher tension. *EDIT And this is also why I often prefer to use a DIPLOMAT weight coated head for batter and resonant...The mylar is thinner and thus more malleable.
As far as these drum comparison videos...I don't really want to hear the bass drum or snare or cymbals that much when making drum comparisons. I tend to judge the sound based on the tom toms. That's why I really like this guys demo videos. He doesn't do comparisons, but he presents the drums in a very nice way with great audio and easy to watch video....
[ame="https://www.youtube.com/watch?v=A8FPeA_DE-A"]FRANCO DAL MONEGO PLAYS GRETSCH ROUNDBADGE VINTAGE 60's SILVER SPARKLE JAZZ SET 18/12/14 - YouTube[/ame]