Progress report: a little over 10 weeks after the surgery.
I've been riding my mountain bike about once a week -- can ride for 2 hours without any trouble. I can almost climb the steep slopes I did before, but not quite. There is still a little weakness in the quadriceps that is getting better.
Trying to hit the gym 3X per week, doing leg presses and knee extensions each time. The operated knee is definitely a lot weaker than the other. I can press 200 with the good leg, only 140 with the right. Knee extensions are about half the strength of the good leg. But I am able to add more weight in each of these exercises almost every week.
Going down stairs is still not steady. That leg press weakness really shows up going down. Heading upstairs is ok, but the leg is a little weak. I need to head out and try a short hike on a trail with serious inclines to see how well I can do.
I still have swelling around the knee cap area. When leg is extended and relaxed, I can move the knee cap around and it looks and feels like it is floating around in a bunch of mush. Going in to see the doctor in a week to make sure all of this is normal.