The MüB-G Single Cut.

 
True to the MÜB style, the original G design morphs into a slimmer, more deeply contoured shape lending to the SC concept a lightness not often seen. It fits like a glove and it can easily weighs just as much. It's available with outward or inward looking lower horn and can be had in any configuration available in this universe.
Tight.

If a MüB has a very long neck pocket a MüB SC had to have the last word. Try one and you'll find the tightest B string out there.