And therein lies the problem. Airlines increasingly see the CAP371 figures (900 hours, 100 hours etc) not as limits but planning targets. Swiss cheese, anyone?
I will treat your naivety gently. But.........one particular airline, in my certain knowledge, have been doing that for years. It was not unknown that some guys had 3 months free after flying 900hours in nine months..........then flew the haj! A big money earner that.