The most comfortable saddle I've ever ridden was a sparkly purple slick vinyl no-name unit on my Centurion. I have a Professional that came on my Professional in my sig, but it's pretty dry and stiff right now, as 37-year-old leather tends to get. I hit it with a good layer of Proofide today and set it in the sun for a while; will do so again in a week and then mount it on my Trek and start re-breaking-in.
I'm not looking forward to it. All those narrow compound curves have great inherent strength and my nethers are surprisingly dainty.