To me, speaking honestly, nearly anything Campy made up until 8 speed came out. NR and GS both shift badly unless you're a TDF worthy rider from the 70's. All their brakes I have are adequate at best. I will use it to build something period Correct, and the 79 Trek 510 frame makes the GS bearable, since it rides so nicely. Just never got the whole Campy Italian is everything mystique. It looks nice, though. That I will have to admit.

Huret Jubilee. Looks amazing, light as hell, but can't shift it's way out of a paper bag...,,,,BD

Most under rated? Universal Mod 77 calipers, Dia Compe 400 brakes from the mid eighties, Schwinn Columbus tubed frames, Suntour Cyclone M-II, Early to mid 90's Shimano 105 and 600....