Yeah I just did five 500 mile days in one week on the stock seat. It definitely could be more comfortable but the weak link was, as usual, my left knee. My record one-day ride, which was on the stock seat, is 1200 miles, and honestly the thing that was killing me after that was my neck and upper back. Now, mind you, I'm not saying you're all wrong about Sargent seats - I'm just wondering the extent to which I've suffered in vain!! So who wants to sell me one for cheep!?