Thank you for the answers on this, I'm going to assume that the best strategy would be to get all of my upgrades and freighters before converting the GR into a Palace if I want to keep the level 4 town.
Makes sense, but what happened? Did you accidentally downgrade your GR?
No, that's a different case. I'm sorry to say it
, but I had tried it on the account in an older version where for a period of time you could upgrade the dockyard even if you didn't have the required levels, through premium.
This begs the question, even though you can't upgrade further, can you use the freighters you may have bought already?
I'm not sure if you can continue to build it, but I wouldn't recommend doing this unless you already wanted to move your capital.
Simply the amount of resource required to get to GR10 and then build another GR10 from scratch isn't worth making sure every city can have a Dockyard. You'd only lose out on your main and you can still upgrade your GR cities' dockyard's higher and higher.
The resource investment would be worth it for me in this scenario, I want the capital bonus and perks on a level 4 town (I use the small battlefield, high wall strategy in this town).