I'm currently riding a SI Lady Gel Flow. Besides the fact that it's slightly too pear-shaped, I'm having problems that I can't quite pinpoint. I spent a little time on the trainer today, and the discomfort I felt makes me wonder if I'm perching on the frame of the saddle. 160mm seems to be on the wide end of commonly available saddles.
Besides Brooks, is there anything out there? Complicating the matter, I need a cutout.