Mr. Salsa and I have used Serfas for a long time. That includes two STPs, which are a little over 200 miles in one or two days. He used a Brooks for years, by the way, but never really liked it, and gladly got rid of it in favor of the Serfas. So it's all wildly variable (as usual).

I am currently experimenting with a Performance Contour, which isn't bad, and still have a Rondine to try. I am also definitely planning to try a Vitesse--if Nanci can ride that damn many miles on hers, I'd like to check it out! Weren't you thinking about a Vitesse too---have you done that one yet?