I'll be working on my dad's bike this weekend and we have an issue we have is the Campy Super Record rear derailleur. He just switched 50-36 compact crank in the front. The shop took a link out of the chain but when you shift into the 36 ring and move progressively higher (smaller rings) in the rear the derailleur isn't taking up enough slack so the chain ends up drooping and resting on the chain stay.

In the large ring the chain is about right but you can't shift into the big/big combo.

Ideas? We're going to try and swap in a Simplex SX630 long cage derailleur tomorrow and see if that helps.

Yes - photos to follow tomorrow.