Cruise
Stick in a fatigue report and see what happens. Man up or shut up.
Failing that send me your schedule and i'll put it through a biomathematical system called sleep wake predictor. Then over a months roster you complete a sleep diary including a subjective fatigue report at say top of drop on each sector.
We can compare results of the predictive vv actual and i'll get you a scientific view on it.
So there you go, you just ranting or serious about your fatigue claim?