No No NO, all wrong, avoid the Konigsberg hassle and just do whatever you feel you need to do in the Naval academy with a test-captain, just to get a feel for what to do with your boat.
And then use your SH3 commander to start a new (for real) career in september 1939, adjust your crew to your liking, switch some eels around if you prefer to have some TIIs on board. then head to sea. It's best to start in the 2nd flotilla in Wilhelmshaven, you'll have a couple of days to get past the straits of Dover (or close to the British coastline if in a type II ). Then you get to wreak havoc in Der Kanal as soon as the war starts
Alternatively one could visit the Scottish coast west of the Orkneys, none of those pesky mines and lots of warship tonnage to be had... and a lot easier to return home from....
1939 and early 1940 is where you rack up the renown for upgrading your boat later on.. you'll need to because it never will be that easy again!
Remember the BDU mission statement: "Be More Agressive!"
