The stock saddle it's working well for me. Usually when it starts to get uncomfortable is already time to stop and take a break, which I do every 70-100 miles. Overall, riding long distances on the 250 does make you really tired, but it's plenty of fun.I'll bet you felt some saddle soreness. I didn't hear that mentioned.
Let me know, I'll come out and join you.I plan on doing this ride next season as a two day trip...down the first day, back to Pittsburgh the second.