I can’t speak for everyone on here but I can’t fathom going through OHS again. For that reason alone I always recommend the mechanical option. Keep the INR close to 3.0 and live your life!wow when you hear reports for strokes with the mechanical valve it sways you towards the bovine valve yet i read on this site that that valve had malfunctioned after only a couple of years very hard to make a decision of which valve to go ahead with when you hear feedback not good from both of them i just hope when the time comes in a few more weeks i make the right decision