SheWolf, 11Bravo is another TypeII weirdo like myself.

I have a very similar experience to his...arrive in port with the engine chugging along on fumes. Most people use the Type II as a stepping stone to bigger things. For others like me and Bravo it's a way of playing....adds a whole new dimension, like limited fuel, torpedos and nothing is expected of you. They don't even notice if you've left port....or care.
So key to the Type II is management of limited resources I'm afraid. This is a typical TypeII captain:
It's from the film Das Boot...I highly recommend it if you haven't seen it already. Yes...the Type II is the mule of the Kriegsmarine, the "school" boat, or the boat for learners. But my is she a beaut under a certain light:
p.s. Oh yeah and when I send a patrol report to BDU (submarine HQ), I always get back "who?"...I repeat: "U-3 leaving patrol sector, 0 torpedos left" and they answer something like "..we have a U-3 in the fleet?...ok....then, come back to port...I suppose". Blimming had enough of BDU.