Today is my First day back on the bike, six weeks following a Di Vinci prostate removal. I purchased a Serfas Rx-921. As my underparts are a bit tender, i was worried about being able to spend any more then 30 minutes on my bike. The saddle gave me a very comfortable ride and I was not feeling much pain an hour and a half later, when I climbed off the bike.
The Rx saddle is actually two full halfs, connected underneath the saddle. Each of the two sides can move independently increasing. The saddle is much softer then my daily saddle, buy following surgery, that will be a benefit.