Well, after reading all the great comments here I took the plunge and bought a Brooks B17. I really liked the look of the big copper rivets so I sprung for the Champion Special. I was hoping that I was one of those people who take to a B17 right away and experience no break-in woes. Put it on the bike this afternoon and did a test sit.
Holy crap! It's as hard as a rock!
It's going to be a long 500 miles...