is this savegame compatible or do i need a new game?

I pushed an update today with these changes:
This mod should usually get to define treaty articles files even if other mods try to do so. I'm open to making a separate compatch for some other popular mods that need to write to these files too.
Recognized countries now cost even more infamy (approximately one third more):
+150% -> +225% Minor Power / Insignificant Power
+125% -> +200% Major Power
+100% -> +175% Great Power
+10% Unrecognized Major Power (no change)
+0% Unrecognized Regional Power (no change)
-10% Unrecognized Power (no change)
The result is that conquering the state of Holland now incurs 32.3 infamy at the start up the game, which is up from 30.6 in the base game. This is how it maths out because conquer state's base cost is much cheaper than the base game (it is 1.5), to allow taking tiny states without a minimum of 5 infamy. Thanks go out to the player who noticed this about the Netherlands.

Let's try it, 5 stars if it works. I hope it is compatible with Hail Columbia Mod.

Solmyr, I think you have a mod compatibility issue with another mod also changing treaty articles files. The mod when used alone will make ban slavery zero cost. From my end I can do one of two things: make this mod more likely to be the mod that has its files actually used when there is an incompatibility or possibly write a compatch with the other mod. The former is easy but will make the other mod possibly seem bugged. With more feedback I can learn about which popular mods need a compatch.

Something is bugged - I added this mod to a game and now I would get 57 infamy as GB trying to ban slavery in Brazil, whereas before I would get 15 or so.

It's not intended for Holland to become cheaper, but you are right that Holland goes from 30.6 infamy down to 24.2 infamy with the mod. One way to address this would be increasing the modifiers for recognized countries across the board. Thanks, had! I will look into this.

God bless you mate.

I'm yet to play with this mod, but from a quick look it seems like taking province from the Netherlands with the mod costs much less badboy compared to vanilla. While taking Beijing is 100+.
Maybe you should calculate how eternal borders are by the number of great power capitals on the continent.
Or a smaller region, I think Russia taking Moldavia would not be such a mauvais ton.
I imagine France (my test start country) taking the Netherlands out of blue should trigger coalition and cut down size wars, while same France taking big chunk of China is kind of not ok but England did same to India so who cares (~90 badboy or something at worst).
Probably will try this mod then full 1.9.6 come out to get more nuanced opinion.

Saw reddit post, excited to see where this goes!

I should definitely try this