I am searching for a new saddle to replace the selle italia flite I've been riding for almost a year. I have one each on my track and MTB rides. It's ok for short 20 milers but my sits bones start talking with any more milage. I think it's a bit too narrow for where my sits bones meet that saddle.

Anyway, I am considering the koobi xenon, selle san marco aspide, selle san marco era k/composite, fi'zik aliante or vitesse, and finally a women's specific saddle either the specialized bg jett or the bg pro. Does anyone have any experience with these saddles, good or bad, or has any advise on what to get? Typically, I prefer a med. hardness with semi-narrow nose and want durable quality product. If it helps, I am 5'4" and 110 lbs and ride 2 - 3 days, somewhere between 60-80 miles a week on a Fuji Track SE fixie bike so I am in and out of the saddle a lot, especially on climbs. Any suggestions?