I got to test ride a Specialized Romin from LBS in size 143. It is very firm and light, with minimal padding and decent size cut out. It seemed that there was a dip that was the only barely comfortable place to be. I found that the sides put pressure on the pubic rami (on either side of pubic bone), the left side of which I broke. This was not a good feeling. I tried some different placement (nose down a tad, further back) that did help minimally.