depending on location the bottom is 300+, moving nearer to the carriers the bottom shallows to 200 - 250 then above 200. I was initially in the central band when detected but luckily for me going at speed and to PD seems to have worked. I managed to pot him and run.
But to get back to the main point, maybe compatibility knockback to XP caused a 'fault' and gave the destroyers more capability of finding me, simply do not know. I did it on Win 7 and got away.
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Captain!, there's a destroyer on the por........ periscope is flooded Sir!
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