Thanks everybody for your input.
I have a full suspension mountain bike, but I am using it for rail trails (eg no mountain biking). I have a fully upright seating position (stem riser, short stem, swept back bars), so it appears I need a wider saddle designed for this upright riding position.
All the brooks saddles that are designed for upright riding have the springs on the back of the saddle. This seems counter productive, as I also have a rear suspension. Not sure what leather brooks saddle I would even order...? Should I avoid the saddle spring suspension with the rear fox shock on my bike?