I would be interested to hear what kind of surgery he had. They do have, nowadays, minimally invasive bypass surgery where they can go between and not through (as in split) the ribs, and one graft is much different than several, but 4 months sounds like a very short time frame to me. I always read your posts with interest, but I can't imagine his services being 'needed' had much to do with the FAA sign off. But then again, very happy that he was able to get back in the air and continue doing, I am sure, what he loves or loved.
Just curious, how's the used car business nowadays? Ahhh, never mind, not much of a salesman anyway............