Cezbor: Thanks for the tip! This is exactly what I have been looking for - too many RL hours spend roaming the seas instead of calculating firing solutions.
Btw. my apologies for all the questions in the long-winded first post. I was just getting a bit frustrated when I couldn't locate any surface units after the long trip.
I have just had a go at the Weserubung scenario and can highly recommend it. The invasion fleet and the allied re-inforcements show up exactly where they should, except that HMS Nelson have replaced the Warspite. Anyway, I got the Nelson with a spread of 3 at 2500 yards and got promptly chased by all 9 DD's in the shallow waters of Vestfjord