Okay, in short. We have a situation where the ships with bigger cargo space have hours to sit cloaked while another ships have tiny seconds.
Such a big difference is simply tardy. So here is the idea.
Is it possbile to use the "ammunition" type of commodity to fuel up a cloak instead of "cargo" type?
We have a max amount of ammo of one type set to 70 so thus all ships will have the same amout of fuel for the cloack and just have a different "ammo" consumption, like fighter cloak consume 1 unit of fuel in 2 seconds, cruiser cloak consumes 1 unit of fuel in 4 and battleship cloak consumes 1 unit in 8 seconds.