Just to clarify, NYGM TW fatigue model and the RUB fatigue model have
nothing in common. The NYGM fatigue model is the only fatigue model currently available that includes the positive and negative effects of moral on crew performance, and is based on a 12 hour crew rotation. This means you must rest watch sections about every 12 hours. The crew configuration is designed to be able to man port and starboard watch sections. It will be more complicated during battle stations because you will have many more crew members on watch, however this is realistic. In heavy weather, the bridge crew will fatigue faster than the belowdecks crew, however this is again realistic. This fatigue mod is designed to work at all levels of time compression, however may be "turned off" by altering the 3DRender setting mentioned above.
If you are interested in reading more about the NYGM TW fatigue model, you may download the NYGM TW v1.03 User Manual here:
NYGM TW v1.03 User Manual
If you are currently dissatisfied with the stock fatigue model, and/or the RUB fatigue model, give it a try. You may be pleasantly surprised.