I just started a career with the 23rd Flotilla. It's November 1941 & I've finished my first patrol (sank 4 ships for a little over 12,000 tons). I'm at sea during patrol 2 & I'd like to know where some of the more profitable squares are? Targets seem to be few & far between; I've come across more friendlies than enemies. Up to this point I've sank 2 small merchantmen but just got chased away from a tramp steamer & a Granville-type freighter by 2 escorts

near Tobruk.
Thank you...