Ok I'm a long time roadie, so I know sewups are better. I used to ride them exclusively. But these days on the road, the vast majority of racers are riding clinchers.
But as a track newb, I get the impression that not only are sew-ups better (which I don't argue), but that clinchers are sooo bad that you shouldn't even ride them on the track, at all.
So is this just trackie lore? What gives?