Instead of having a Union happen at 30 days,
I'd like to request a server without any Union happening ever.
1 King & 2 dukes just the same.
But instead of the Kings being fixed in place at day 30, they would be locked in place from day 1 (this would stop a lot of abuse around making temp kings)
Even worth considering whether King & Dukes should be locked in as soon as the kingdom is formed (making leaders make more responsible choices in the early days)
Union is good for bringing 60-100 players together easily, but really it just gives a bigger area faster, making it easy for meta's & premades to easily get ridiculously Op a lot quicker than a "New" kingdom ever will.
also it would make it harder to recruit as many players & thus keep kingdoms smaller
Union gives 3-4 extra treasuries(with the borders they create) & they give a boost to treasures for VPs,
but I see a benefit in both those things Not happening to help balance the level of play on the battlefield.