Good find Fred! The link you posted to is awesome and a great read for anyone that has an old DA8 rear derailler or anyone that wants to mix & match different brands shifters & deraillers.

I think you may be right on that one. The link you posted shows that Campy 10 levers have the exact same cable pull (2.8mm) as all Shimano 8 STI levers. So, a Campy 10 lever would work perfectly w/ a DA8 rear derailler, even better than a Campy 11 lever when mated to a DA8 rear derailler. I am not sure if we can trust that chart though for DA8. I could be wrong, but I thought that DA8 STI levers had a different cable pull than the other Shimano STI levers (ie, Ultegra, 105). Any other website to confirm? Or anyone know if there a way to measure this on our own?