Originally Posted by
HOOD
no sh$t but if you had decent shifters and comparable rd why whould the shifters give more bang for eg going from veloce rd to chorus or veloce shifters to chorus
The derailleur will perform roughly the same across component levels. The shifters are much more complicated pieces of kit, and you can definitely feel a difference. I can't really tell a Tiagra from an Ultegra rear derailleur on my bikes without looking. Derailleurs are kind of a sucker part in my opinion. It is always one bump up the spec chart on new bikes because they know it sells bikes to people that think the rear derailleur does all the work.