I have the same saddle on my Kona that Mimi has, except mine has black springs. Unless you're really looking, the black springs are pretty unnoticable.
My sit bones are nearly 180 mm outside edge to outside edge. If the goal is to get the sitz in the center of the "cheek" of each side of the seat, there is no way I could do that on any of the smaller saddles, I would just be perched on the very edges of the saddle.
Lemme tell ya, it is SO comfy to have the bones supported completely! I can't believe it! And as the hard leather is starting to soften, it just gets better. From what I've gathered, the leather never softens to the point you get the "gel seat syndrome".
My next bike (steel tourer) will also have a Brooks. Probably another B67 or a B72.
"If Americans want to live the American Dream, they should go to Denmark." - Richard Wilkinson