Looks excellent, downloading now
One "realism" suggestion: In the real TDC the light that indicated wether it was set to autoupdate with the movement of the scope/uzo or free from them and able to receive manual inputs in the dials was BLUE, and it was lit when the TDC was NOT coupled to the scope/uzo, i.e. when it accepted manual input on the dials. When coupled to scope/uzo, the light was off.
Oh, and I liked the original Papenberg (periscope level indicator) better than this new one, as it matched the pictures from real U-Boats I've seen. It's a matter of personal taste, though
