Any question answered...

For all those interested, and by that I mean me, Athena requires 111mm. I discounted that as it's the width I run fixed so couldn't have imagined using the same for a road-double, especially when I'd previously been using 118mm for a Shimano double without issue. But there you go.

Indeed, Campag Pista cranks run on 111mm BBs. As did lower end road doubles like Veloce, Mirage and Centaur. You could also run a triple on a 111mm BB, assuming you had a fairly narrow seat tube.