I know how to make a Campy 10 RD or 2015+ RD work with pre-2015 campy 11 levers.[/QUOTE]

I would love to know how to make a pre 2015 11 spd chorus lever work with a post 2015 Chorus RD and FD. Thought I had cable friction issues until I recently discovered there was a pull ratio difference after 2015. Would be great to not have to buy a new set of levers.