Fodera can make you any guages you want. I ordered a 4-string set of Anthony Jackson strings (exposed core) in James Jamerson guages. The Diamond series (which the AJ's are a part of) are compresion wound, ie theya re rounds that are fed through a roller to flatten them out a bit, amking for an eliptical profile on the windings. The feel really nice and sound great. They make their strings at the Fodera shop in NY.
http://fodera.com
Carl Thompson can also get you any guages you want, his strings are probably the nicest sounding nickle strings (Carl doesn't do steels) I've ever played. He has his strings made from a specific aloy, they sound very warm and very alive. My bass teacher said they are the best string she's ever tried, also very easy to intonate very precisely. Carl's also GREAT to deal with, and is an all around great guy, with many a story to tell if he's in the mood(he made the first modern six string bass and makes Les Claypool's basses)
http://ctbasses.com
~Paul
