I think you'll find that it is going to be more like 8
Nope your wrong it will be closer to 6 than 8
If the civ's work everyone up to 2000 hr's WTD there would be no flex
if someone goes sick and Pilot's/Crewmen are working to the max they can't or won't ( looking forward to that bit
) step in to cover, so the company will pick up a large penalty.
It's a no brainer really but hey they will be a private company so who knows how they think.
Me I think keeping crews around 1800-1900 would be sensible.