Thanks for the info!
Been playing for over a decade and a half, and love the game (and the granularity). Thanks for the explanation and the page 203 reference!
On to Ambon!

Playing version 1.8.11.28.4
As the Allies, I noticed a serious dropoff in Japanese capital ship detection starting in June 42'.
Now, I'd like to say this is because I've sunk so many cruisers, battleships and carriers that they're all on the bottom, but in reality they only lost 3 CA's at this point ...