Being that all the talk is sounding like the yearly Masi-fest, in honour of Jerry Moos (where are ya Jerry?) I thought to bring discussion back to French (yes, I know he owns a Masi) and to be more specific: Simplex !!!
I don't have a Simplex derailleur at hand but I have an itch for French and am wondering if there's any issues to fitting SIMPLEX rear derailleurs to Campagnolo 1010 type dropouts with threaded hangers? I don't wish to use a hanger or "claw" and I'm thinking of mid 70's and early 80's Simplex derailleurs like the SLJ or 610. It might be a non- issue ... I just don't know.
To keep our resident Leporid from beating on his well worn keyboard I did search the archives and IntraWebs but didn't find anything specefic to answer my basic question.