I guess i do have an iron butt. The seat really doesn't bother me at all, but i do mountain bike which has gotten my ass pretty tough, so that probably has something to do with it hahai just did 175 in 4ish hours, got off long enough to fuel up, and it wasnt that bad. My passenger didnt last 50 miles though.
@complecs - damn that a hell of a ride! Thats gotta be feel like the Iron Butt Lake Michigan 1000 ride.