Grey is right! Listen to that seasoned Kaleun!
The IIA is quite decent if you are into good diving times and agility. Hovever seen how you have to mind the "Treiböl" and goin 6 knots all the time can be longwinded. And a small trip to the channel and back can take weeks.
It's not impossible! I had a IIA patrol to the coast west of ireland and back in my tiny sub, and i made it home! On fumes and what not, but i made it!
