It's about a way how to at least start to balance things in cloaks. Currently with the usage of the cargo fuel it is unreal to put any sence into cloaks.
So the question is what if we'll use ammo fuel instead of cargo fuel. So the actual balance could be done by simply changing the cloak generator consumption rates for various generator classes.
I think ships should be able to cloak for a long time. But the cloaking time itself must be long to prevent it being effectively used in the middle of the combat. Also fuel should not be consumed while generator charges. This will give the way to make a long charge at all so the fuel will not be running out before ship even dissapears.