First things first - GWX is great, and I'm having a lot of fun, but...
I've just completed my fifth patrol with a type IIA from Kiel, and it's now April 1940. Each patrol I head for the designated area, hang around for a day and then go to the coast of England. I move down the coast, 50-80 km from it, until I start running out of fuel. During that time I have come across the grand total of one (count 'em) sinkable ship, which I missed sending to the bottom as it was moving away too fast for me. The two juicy freighters I did find turned out to be Norwegian and Dutch.
I accept that that's probably how things really were (I'm on 84% realism, I love the external camera too much to give it up), but what can I do to increase the odds of finding something? I regularly dive down to 25m to check the hydrophones, I always have good look-outs on the bridge, and I keep playing Lili Marlene to attract a tanker or two, but no luck.
Any tips gratefully received!