Hi everyone, thank you for the replies

Here is a photo of the RD with the chain on the big ring and smallest sprocket.



Campy says to position the RD’s guide pulley as close to the smallest sprocket as possible without the lower branch of the chain facing upwards and without it making noise.

I could position the guide pulley closer but this will affect its position on the largest sprocket, which is already borderline too close.

Wondering if other Campy 12 owners have encountered this?

Thanks!