The Synchros' lock screw "bacsk off" i; loosens up and the shift is sloppy I have to reach down and tighten it by hand as I ride....A mechanic told me this is "normal" for the 1st generation of Campy "index" shifting....I might do a make-over and find a Chorus Ergo grouppo and well.........the Rolls saddle is in the garage and the Specialized one feels much better....Cheating a bit