So, for the Brandenburg I think it's going to be the
Prague/Viennese bass.
It's easy to play, I like the neck, the sound is good and it will fit the music. Before my next concert after that, I should have my old Lion back but I can do without the extension if I so choose to. There are only a few low notes in one piece and 2 of the other guys in a section of 4 can play them and 2 can play up. No biggie!