There is still a problem tough, you can "Make money" by a glitch in the shipyard interface.
If you sell all your cannons and then install the bronze cannons this install will cost you no money. Then when you install cannons again on the ship the sellprice of the upgrade goes up. Because this upgrade is so expensive you gain more by the 10% which it cost to upgrade a cannon then it cost to sell and buy a cannon.
This could be fixed by making this upgrade not dependable on how many cannons you have but by the max amount of cannons on your ship, which does sound logical cause after this if you install more guns they will become this type too...
Opinions?
If you sell all your cannons and then install the bronze cannons this install will cost you no money. Then when you install cannons again on the ship the sellprice of the upgrade goes up. Because this upgrade is so expensive you gain more by the 10% which it cost to upgrade a cannon then it cost to sell and buy a cannon.
This could be fixed by making this upgrade not dependable on how many cannons you have but by the max amount of cannons on your ship, which does sound logical cause after this if you install more guns they will become this type too...
Opinions?