Hi, all:

Some of you will recognize me from a prior post about my project bike, upgrading a Raleigh Super Course II (made in England), regarding Campagnolo derailleurs.

I was hoping someone or ones can give their learned opinion or facts on Campagnolo model derailleurs to help me decide which is the best one to try to find to buy on eBay.

I already have purchased one Campy derailleur that will work with my project, according to specifications from my mechanic. But I am still looking to buy one or two more derailleurs for possibly swapping out the rear end stuff for a different bike configuration. My question is how to decide which model is better than another?

The contenders, according to what I have found that matches my search criteria, are: Euclid, Mirage, Chorus, Centaur, and to a lesser extent (does not meet 8 speed requirements), Record and Super Record. I do see other models for sale, but not in an 8 speed rating. If any of you can rank these in quality or desireability, that would be most appreciated. Thanks!