Campagnolo Veloce compatibility - small rear derailleur with larger (29 or larger) cassette?
All the Campagnolo deraileurs of that era were rated for 29t. If you want to try 32, you will need to find a mid Potenza derailleur (which despite being branded 11sp, will work properly with your 10sp shifters) and use an aftermarket 10sp cassette that provides the 32t sprocket.