What an optimistic post, Mike! It seems that your cardio team is certainly encouraging you to lead the best life you can. Now, 46 is young, this is coming from an almost 80-year-old who walks 4 miles a day, goes to the gym, washed 4 windows this morning, mowed the back yard yesterday, etc. I had a septal myectomy just before my 76th birthday. You are absolutely an inspiration in pointing out that "big improvements are still possible even after major heart surgery" and "I feel stronger, look better than I have in years." Working with the doctors is a must and after surgery I did go to Cardio Rehab for a short time. Yes, there are good days and not-so-good-days, both taking good care of ourselves (eating well and exercising) and listening to our bodies is important. Thank you for sharing your story.