Man they are both sick. I can only comment on micing them up. But the OS is much more open and thick but almost just as tight under a mic as the traditional. Not something you are going to listen to and be like “man I wish it was tighter”… that’s just not gonna happen i don’t think. The traditional is more mid forward, can sound boxy if you really wanna throw adjectives around, compared to the OS. But not bad by any means, they are both GREAT. I don’t think you can go wrong with either. If I was playing live a lot, I’d probably go traditional simply because it isn’t as big sounding in the room and sounds more focused. Under a mic though, it’s a different story: the OS is huge and focused, but just different.