Luke--as usual--hits it out of the park
. I'll only add that not only was Japanese radar poor but they had very few operators that really knew how to make the most of it. Being able to calibrate a radar system properly is 9/10 of being able to use it effectively.
As far as the game operates: I just finished a patrol in the Formosa Straits in Sept of 44. Because of the shallow waters, I chose to make all my attacks on the surface at night. Everything I attacked was escorted (kind of unusual) and I was able to shoot from ranges of 2500-3500 yards and get away undetected--even when it was clear. Just don't dive right away when the escorts start shooting--it might just be star shells...