I was overhauling a rear Campy Record hub for my Ciocc build and I lost two bearings, possibly to a clan of little beings living in the floor boards of my kitchen. Then I found a pretty serious pitting on one of the cones. I took apart an unused identical hub and took the two bearings and cone from there to finish the overhaul on the wheel.
Now that I've robbed Peter to pay Paul, do I replace all the bearings on the donor hub to make sure they're the same size? How standardized is the Campy bearing vs. others I might find in other hubs I have laying about? And the pitted cone?