They are apparently made by the Bass Centre in London (Wapping I think) and I just bought some standard gauge stainless steel roundwounds. Are they any good? I haven't got home yet so I haven't been able to try them (obviously). Also what are the red silk stringy end bit Rotosound Swing 66s? Are they steel or nickel? I have a low B Swing 66 and the rest are gonna be Elites... Great.