+1 on the Fizik Vitesse. I had the one with the Ti rails back when I had my MTB. Loved it! It fit my sit bones awesome without being too small and it really let me work my bike into turns and such. It was just wide enough that I could grab the nose between my thighs when standing and if I needed to grunt up a hill I could uh, no delicate way to put this but I climbed with my saddle pretty much in my butt because put my legs in a nice, powerful position. I'm actually shopping for one right now.
"True, but if you throw your panties into the middle of the peloton, someone's likely to get hurt."