Funny story there
I also encountered a brittish destroyer (after I had come back from patroling the whole Norwegian coast only to find a german ore carrier

) but that was in medium fog and he didn't even spot me (god bless my watch crew)...But then I just have to say I encountered 2 Fiji class cruisers in the middle of the shiny day and fired 3 torps at 3500m with magnetic pistols....all exploded way ahead of their targets....somehow I just know it was Bernard who had putted the pistols to trigger on timed detonation