I have a B-72 on one of my bikes. It is a very comfortable saddle. I was going to buy the sandwich slowandsteady mentioned but the day I found the saddle languishing dust covered but unused in a bike shop, I bought an old style post and clamp for it so I could install it there. I never got around to buying the sandwich. My B-72 was comfortable immediately. Its leather is thinner than my B-17 and took no time to break in. Enjoy!