[U-Schultz]

I see what you mean about the repair station having no "cap" on fatigue recovery. As a test I added the following lines:

RegularFactor110=-0.18
RegularFactor111=-0.25
SpecificFactor110=-0.18
SpecificFactor111=-0.25
BadWeather11=0

Just as an experiment to see where to go I put several men at at the repair station. The fatigue bar became totally red in time instead of the red fading to yellow bar as normal.

I put one of the men (a lowly seaman) in the torpedo room by himself and the green compartment bar maxed out with only him in it...and with no torpedo qualification.

To "drain" him I left him in there for several watch changes and he is not fatiguing. I presume he is so "supercharged" with rest (fatigue recovery) that he is now some kind of U-crew superman! I wonder what his numbers look like now in the crew .cfg file in the save game folder.
In time he will fatigue to normal I guess. I suppose I will change the compartment 11 lines back to a no fatgue or minor fatigue drain (like the submerged diesel compartment) and call it a day.