yer, personally I wouldn't risk it.
If things go tits-up your bugged.
If I had to attack i would need all TI torpedoes and I would need to shadow the convoy until the next night to make a long range surface attack. with only 88m of water your best hope is to escape fast on the surface.
however, like you said, I wouldn't risk it. Theres more fish in the sea.
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