I have heard your spine is never the same after activating the ejection seat.
I’ve heard that you aren’t permitted to pilot after that; don’t know if it’s true or not.
I knew a little something about ejection seats. The early seats in the F-4 and other aircraft designed in the 60s and 70s usually had unique designs and subjected the pilot to over 40 Gs instantaneously. The newer AC like the F-16, A-10, F-15 have a common seat called the ACES II which subject the pilot to less than 20 Gs. Thats still a lot and will screw you up not as much. BTW I was an AC life support tech in the USAF in the 80s.