Speaking of that nifty little mod of yours, Ducimus, I'll have to download TMaru to see what changes you've made to sim.cfg. In my home-brewed settings, and having halved the AirS_Visual sensor's range, I get spotted even at 160m of depth!
I began gradually "increasing" the Surface area, went as far as -4.3 (from your -4.35 I think?) before a particularly nasty bomb dropped on me and landed me on my bed at 0300 hours! :rotfl:
ETA: 100 posts in a month...damn, I don't seem to shut up, do I!