My quest for a new saddle continues. I'd actually like to try the Bontrager Affinity, but since its in-store date has been pushed from "late August" to September 20, I figure I'll use the next few weeks to try a Selle San Marco Aspide Glamour. But looking at various web sites, there seems to be different versions of this saddle and I'm not sure if it's just that this year's model looks a little different from previous years or if there are true differences in shape, padding, whatever.

Does anyone know what's the deal?

This is from the SSM site. I don't see any for sale online that look like this.

http://www.sellesanmarco.it/en/Colle...20Glamour.html

Bicyclebuys.com has this one, which I think might be the same except for cosmetic differences(?):

http://www.bicyclebuys.com/seats/SeatRoad/0900230


This ebay seller has one that costs less but it's called an "FX" -- what does FX mean?

http://cgi.ebay.com/Selle-San-Marco-...20Glamour.html

(I can see that there is definitely a different model for triathletes, which has a different cover from the ones in these links. I'm looking for one for long road rides.)

Thanks as always for any input you alls can give!!!