I like the GWX 8 hour model. It provides a decent amount of gameplay content, another variable to consider. And I actually quite enjoy the mini-game of shuffling the crew around
With practice comes a method, and, IMO anyway, there is a trade-off between the ends of the spectrum: with no fatigue, the Kaleun avoids micromanagement, which is realistic, but with the 8 hour model fatigue is very much a factor, which provides its own realism. 'Tis just a question of which you prefer. That said, having read Sailor Steve's description of the Rub model I may give that a go, for variety as much as anything
