Ok, I'm not going to impress anyone, so... I had a problem with hemorrhoids, tried saddles that looked like they'd be good, butt(OH!) only delayed the problem. I built my own design and have been riding without problems on my home-built "saddle" for 2 years. I'm happy with that, even though I have never come close to a century in distance. I ride as fast as I can for 30 minutes most mornings, and I probably will be found dead alongside the road laying next to my bike.