Thanks, all.
I waited the situation out, seeking cover in the southern part of the bay, and in about three hours the destroyers that remained had given up. And the one that had run aground had been marked with a y're dead!-mark on the map. Gave the tanker a shot from my aft, after carefully maneuvering to get a 70-80 degrees solution.
It was a T2, though. Mixed the sizes. That.... shouuuuld... bring iiiiin... more than 27,500 tons!! That was an increase in tonnage of about 95%!! Damn, was it nice.
Going to Isle of Man and Liverpool now... gonna see if I can't find a big, tasty target.