Hi Drew - good point, I've always preferred slightly longer-than-normal lenses for enlarging. But I've only done that in smaller formats. It occasionally occured to me a 180mm would be nice for 4x5, but it seems anything longer than 150 is rare these days.
Could you elaborate on your preference for the Nikkor or Rodenstock over the Componon-S? Any specific shortcomings in the Componon-S relative to the others?