I'm thinking about getting a 9 or 10 speed campy shifter. I hear you can make some 10 speed shifters work with 9 speed cassettes using the alternative cable method but will it work with the campy shifters? Even if I were to get a 9 speed shifter will that brand work with my new shimano RD and my cassette? I just don't wanna get all matching parts if I don't have to.