Hi all! I’m new and have asked a few questions. Here’s another one. (Surgery December 19). I was looking through old posts from like 2009! The on-x debate. Many on that thread said on-x and I’m wondering if people still feel the same over 19 years later?!? I am still waiting to discuss with my surgeon again. The more I read, it did seem the newer material made some difference but I would still not want a low INR. Anyways, just thought I’d see thoughts and if there’s anyone in here from that 2009 thread if you still feel the same!!