I see that the San Marcos Rolls is a fairly textured leather saddle, and after trying several saddles with textured surfaces, I finally found considerable relief from abrasions by using a saddle with a smooth slick shiny surface. I never remembered experiencing the extent of saddle sores on my commuter of years ago that had a slick saddle as well, but never really connected the two until after I purchased a Brooks saddle for one of my current commuters. Once past the break in and figuring out what the best saddle position was for me, I now understand the term "disappearing saddle".