I dont understand. I though if you have campag 10 speed you get a dura-ace chain. Carnt rember the exact reason why but its what you do. And wouldn't replacing chain,cassett,chain rings on a record group set be quite expensive, definitly for me. That why i got ultegra
People used to do this because of the Permalink, now no longer with us. Reminders can be found in many tool boxes, including mine....
I used to use a Sachs PC-89R chain, but I did have some problems with chainsuck for some reason, Record chains (with a Wippermann link) don't do this, and you can remove the chain for cleaning without tools.
I'm waiting for the new lightweight Ultra chain from Campy...then my new bike should be 12.2lbs