You make great points about this type of thing in other fields.. and I just experienced this during a wine tasting in Nappa valley. I was with several experienced wine people who tasted various years of one winery's merlots and would explain major differences in them. Being a skeptic, I made them do a blind taste test, and sure enough they could all immediately tell the 2003 from the 2005 from the 2007. It was pretty amazing.
But I bet they couldn't hear what the VCC does for the life of em!

