Campagnolo drivetrain compatibility and noise
I ended up taking my bike to Dickie at Waverley Cycles. I had a couple of problems:


The chain was too long (I hadn't removed enough links)
The cable adjuster on the derailleur had stripped threads so had movement


He shortened the chain, screwed the adjuster further in and used the adjusters on the cable stops near the front of the bike to tune it and everything is now silky smooth