Eric
I use alot of fine lines stuff.
http://www.finelinesinc.com/ And there local for me. Wandsworth OH. I have only used there SS lines, never used there steel, but they have them.
I just got a SS set from the in SS for a Nova project, there telling us that they are using a softer SS that should seal up better. I have not got the fuel or brakes operational yet so I can't comment.
I have always found ther lines to be A-1.
Mike
http://www.finelinesinc.com/