>>1202042have you ever tried walking around like Groucho Marx with your knees bent? It's uncomfortable. You don't get the proper leverage you need and you have to go really slow. Literally the only benefit is that it looks funny.
Unless your purpose is to do a comedy routine on your bike, you're wasting energy and going much slower than your potential (not that speed is the most important thing, but why cripple yourself?)
http://www.sheldonbrown.com/saddles.htmlwatch the video