Had my B17 for 20+ years including a cross US ride, put neatsfoot oil and it started to stretch and tear away from the rivets. I've had a new B17 on my rebuilt Lygie, no oil for 4 years and it is very comfortable and smooth. I've a fancy titanium rail fizik on a new bike and am about to make another Brooks investment. Altitude, attitude and seat angle has a lot to do with comfort.