Hello Everyone! Initially I had planned on going with a tissue valve to replace my Bicuspid Aortic Valve, but now I'm seriously leaning toward the Mechanic Valve at the advice of my surgeon. He said, as an athlete and someone hoping to NEVER repeat this surgery it would be the best option. I'm leaning toward the On-X. What is the incidence of failure on a Mechanic Valve? Would you mind sharing your experience? Would you recommend a Mechanic Valve for athletes over a tissue valve?