This saddle on an RF XY post is the noisiest damned combo there is - wear earphones or go insane. 280lbs. and six foot three and ride nearly every day. Unfortunately i do not rate this saddle very highly, i have already owned two because of bent rails. What a great product. It gives your butt so much room to move.
Steep climbs move to the front.
Fun downhills move to the back. A very strong product and well built. SDG Big Boy, Its a good improvement over the racing saddle that came standard on my dual suspension bike. If your used to a racing saddle you feel like your legs are rubbing as you peddle. A little bit narrower in the front long section would make it easier to peddle.