Originally Posted by cudak888

Applies just the same to new derailers too, if we are lump everything into one basket. Some of the low-end modern crap will loosen up quickly without any help, while other "old derailers" will hold their position for 30 years.

*cough* Suntour *cough*

There are so many good C&V derailers (to bad) in regular circulation that I tend to suspect the mechanic in these situations, if their first inclination is to blame the part on a blind assessment of age.

-Kurt