Does anyone else out there have the On-X mechanical heart valve specifically? If so I would love to hear about your experience with it. I am still getting used to mine and I have had it 2 years now. I know they mentioned I will notice the ticking. The way I constantly notice every beat is still bothersome to me though and I don't really get any answers as to what exactly most other people experience with one since I don't really know anyone with one.