Ever sine I got my new bike, 2 months ago, I had very rough shifting. I could not adjust the shifting to shift well across all 10 gears.
If it shifted well on the low gears, it would skip on the high gears, and if I optimized it for the high gears, it will skip on the low gears.. I couldn't figure out what t'hell is going on. I started to suspect that the frame is off, or maybe the wheel is not centered (I have horizontal rear dropouts)..
So I decided to be a pu$$y and read the Campy manual (shudder) on installing and adjusting the rear derailleur. (RTFM)..
one picture caught my eye, where it shows how to route the cable through the derailleur clamp..
The light blue shows how the cable WAS routed, and the no-color cable is how it should be...
Once I corrected the way the cable goes through the clamp, and did a top to bottom adjustment, it shifts like buttah!!! :