Last year I switched the drivetrain on my Scott CX Comp from 46/36 to 50/34 rings. It went fairly well but I do tend to get a bit of noise on the 3 small sprockets when on the small ring. Ok, I can avoid that, but it is annoying having it happen on the 2nd and 3rd smallest sprockets. Trying to compensate for this by adjusting the FD makes the largest 3 sprockets when in the big ring noisy. Once more, that is a bit of a pain.

So, I was wondering how much difference there would be between the FD-CX70 and FD-4600 derailleurs? Images make have them looking pretty similar, but I dod wonder if there was a slightly different shaped cage on the 4600 that would better suit the 50/34 rings?

The cassette is 11-32 10 speed.

And, if anyone wants to suggest an alternative to the FD-4600, I'd consider that.