I'm confused by this thread. To me, the "collar roll", is the natural way a soft collared button down rolls over a tie. I don't see the point of pictures of open collar shirts. In fact, to the extent that an open collar button down makes big circles on each side of the neck, it makes me think they are lined in bakelite. To each his own, I suppose, but to me its about asymmetric rolling of the collar like waves.