How about if you capture the home port of a CV, it gives up the location of that CV?
You'd still have to go to great lengths to fly across the map and sink it, so not an easy 'poof' return.
It would add some extra incentive to defend the port when the CV was at sea, even when it wasn't being hidden, to keep it's loaction secret when it's in route to a fight.
It would still allow for strategic 'moving' of the CV to keep it fom falling into enemy hands, just not 'hiding'.
would end the need for 'spying' to find it, because capturing the port would locate it.
Locating could be exact, shoing the CV icon in red, or soft, where a it's number is displayed in the corner of the sector box it's located in.
Fun for all?