Running 9 speed Veloce Ergos with road BB5s. Better than calipers, especially for feathering the brakes on the long twisty downhills that feature on a lot of my road rides in hilly South Devon.
I did have to change the cable outers to Jagwires to improve the braking performance as the original braking was a bit spongy. But with the BB5s set up properly and the new cable outers they certainly do their stuff 🙂
Running Campag gears with a 9 speed Shimano cassette on a FSA 130mm spaced cyclocross wheel. Couldn’t find any affordable Campy compatable disc hubs. A JTEK Shiftmate provides the necessary cable pull adjustment so the Campag shifters/gears works with the Shimano casette.
HTH.