The LBS has one of the Specialized foam measurement systems. I had them measure my sitz bones this morning. I should be using a 130 saddle as I had suspected. The one on the Roubaix Expert is a 143. The LBS manager said I was the narrowest that he had measured. I think once I get the 130 width seat I will be much happier. He said it should be in the truck that will arrive this afternoon.