Funny enough, the other saddle I want to try on the road bike besides my Swift would be an all-carbon saddle like what was being talked about in the Road forum recently. One of the guys bought a Taiwanese carbon saddle off of eBay under the Merek brand name, and he liked it quite a bit. Said that its shell flexed to fit, so I dug up some Youtube vids to see for myself. Yup, some of them flex in the same way the Swift and B17 do.
Will I change from riveted leather to molded carbon fiber? Not sure, but it's tempting when the carbon saddles are cheaper than what I paid for the Swift off of CL.