I use GWX 8 hour, for same reasons as above. Don't want to micro manage... but at same time, don't want a crew of robots either.
Always thought that morale V fatigue should play a bigger role in the game. As in, a big successful sinking gives the crew an extra boost while a sustained depth charging takes it toll.
That and stale air. And bad food after several weeks at sea.
And as for Bernard's farts...