I've read the very helpful threads compiling FAQs for saddles. I seem to have kind of a strange problem, however. I was comfortably riding a Specialized Toupe 143 until I had a bike fit and the fitter noticed that my butt was hanging off the back. My sit bones sit on the very top edge of the saddle. I was beginning to get a little discomfort in the sit bones (not sure if it was from the position or that the saddle was wearing out). I had also had some IT band pain, so my fitter suggested I try the Specialized Romin since it tilts the pelvis forward. My sit bones fall between 143 and 155, so he put me on the 155.

I was still sliding back to get comfortable on the Romin and did the same on the other Specialized saddles I tried. Any position that was correct (ie: sit bones where they should be) put too much pressure on my labia and surrounding soft tissue. After a long ride on the Romin, I felt like I had a UTI, that's how bad the pain in that area was. I also developed a saddle sore at the crease of my leg (between butt and hamstring) and it was chafing the insides of my thighs.

Any thoughts on what shaped saddle I need? If I'm between sizes, should I size up? My LBS only has test saddles in 143 so I feel kind of stuck at the moment. Is there any truth in that a rounded saddle could help prevent the IT band pain (which I suffered from all of last year when I was riding the Toupe) or was it just a coincidence that it subsided around the same time I bought the Romin?