Am I getting this right, there's no benefit to the province from being declared your main trading port? It just affects which TN you collect for free from and gives the TN-specific +5 TP?
So if I'm Poland->Commonwealth I should not be putting in the logical seeming Danzig that everyone and their dog will claim, but some safer province like Chelmno or Samogitia that no one will take even if I lose a war?
So if I'm Poland->Commonwealth I should not be putting in the logical seeming Danzig that everyone and their dog will claim, but some safer province like Chelmno or Samogitia that no one will take even if I lose a war?