"Chocks on/off" is nomenclature for starting-stopping motion, NOT the actual placing or removing of chocks. Do you still log "Stick time"? When was the last time you were behind an actual stick??
BTW, TCat is correct. In the USA, 1,000 hrs "block" time is the max, not 1,200.
Pax major airline? sure.
How about freight, commuter or part 121 charter?
In OTHER parts of the world, fatigue is considered a bad thing no matter what you fly.