I am not sure I would change if the saddle is not uncomfortable. I did a similar thing on my old bike & wound up with a saddle that was MORE uncomfortable than my stock one. Turns out the bike didn't fit and that was the problem - not the saddle. I now have a very firm saddle (can't recall the brand & I'm at my office right now so I can't look - sorry!) & love it.
Good luck!
"When I'm on my bike I forget about things like age. I just have fun." Kathy Sessler
2006 Independent Fabrication Custom Ti Crown Jewel (Road, though she has been known to go just about anywhere)/Specialized Jett