@ Gino,
agreed, the Devs did quite a nice job on this - but there's always room for improvement. Sadly, with absence of a SDK, modifications of 3D interiors / texture mapping are atm rather limited. For the moment i'm modifying SH4's 2D art, i.e. using higher res textures than default, to improve legibility and overall appearance.
Comparison of stock SH4 gauges (1024x1024):
and modified gauges i'm working on (2048x2048):
!any pointers concerning the gauges are highly appreciated!
The shots of the torpedo firing panel you kindly posted gave me some ideas for the 2D periscope overlay (WIP):