I have just been riding the carbon saddle one with the metal rails, not full carbon. Anyway I think it's great for the soft bits, but fark me my sit bones are taking a beating. Do you adapt on the sit bones the way you (partially) adapt with the softer bits on a more traditiona saddle? Because my quads take a beating the day after a long ride as I spend the whole time trying to keep my weight off the saddle!