i usually stay away from england to keep the planes at bay, with the VIIA i dont want to waste any fuel on recharging batteries, more fuel means more time on station waiting for a big convoy.
The tonnage i lose in coastal shipping is made up for because everytime i see a big convoy i have a full load of torpedos, and the fuel to stay with them night, after night, after night (position reports on the surface during the day)
Take out one destroyer on the opening attack to always keep a flank open, than play cat and mouse with the defences. As i said in another thread my sub hasnt so much as felt the ping of an asdic signal, much less a bullet or depth charge
January 1940, 81,000 tons, 1 Battleship, 3 destroyers, 7 merchants of various types., Full real manual TDC dead is dead