Ok, so that other thread doesn't get derailled, What makes a good cup? Who makes a good cup? And what's the best cup for the money? bonus question, who makes the best 26 tpi Raleigh cup (or Italian or Swiss or whatever your favorite oddity is)?
I have spoken.
Precision machining and shiny chrome. Lasts forever. I like Magistroni (typically Italian threads).
For 26tpi cups you don't really have a lot of choice. Raleigh, Phillips, and T.D.C. are probably all you will find and they're all pretty much the same quality: nothing special, but plenty sturdy.