Nice report Tolkemec!
Yeah its a long trip alright, i did the exact mission (North Western) earlier this week, and like you i saw very little oddly.
I sunk the HMS Rawalpindi about 100 miles north of Loch Ewe, almost ran straight into her in a storm and big seas, that was the biggest thing i saw......i spent most of the trip popping fishing and coastal boats with the deck gun!
I'm on South Western approaches now, and that's a long long haul down there from Wilhelmshaven!
Saw a huge convoy last night heading west off the south west coast of Ireland, but way before my patrol area, i let em go as they were all small freighters with 5-6 warships escorting, not worth the risk.
Happy Hunting!
John.