Best and highest Overextension percentage to be on?

[Road to Herald]

i'm thinking atleast below 100% so you can avoid the events

[SirSanjiSlacks]

Yep, no higher than 100%

[Kitten Food]

Again another situational question since anything that has *best* in its description is not a simple 1 shot answer.

If you have low legitimacy, any form of OE can be dangerous.
If you have high war exhaustion and are trying to core during a war, that is dangerous.
The other factors such as stability, advisors, active modifiers and nationalism present in the provinces being cored can also make it either easy or dangerous.

Nobody can really answer with a percentage on here unless they site conditional examples that tie with that statement.

[Kagemin]

Mostly depends on how stable your nation is overall. If you want to be on the safe side you should never go over 100%. since that's where the nasty events happen.

If you are very stable and have a couple unrest modifiers in your favours (Theologian, tolerance, etc) about 150%-160% is doable without too much trouble, but even then I'd only do it if I have the troops and manpower to deal with an uprising or two.

Another important factor is the religion in the provinces you are about to take. Them being of your official or at least accepted (in terms of tolerance) religion makes a huge difference there. You can often easily get +5 or even higher tolereance of you main religion, while (without humanism) tolerance of other religion will usually be negative, that's a huge swing.
Speaking of Humanism, that also makes it much easier to handle.

Already existing progress towards uprisings is another thing to consider. If you have high progress for an uprising already it might be best to wait for that to happen before taking the overextension, that'll be one less thing to deal with (and it will be smaller too).

Even under the best of circumstances I wouldn't recommend to go over 200% overextension though. Later in the game, when you are big enough to no longer worry about manpower, you should be able to deal with it eventually, but it will require your full attention for some in-game years.

[c00lizz]

Well, you only start getting the bad events at 101% so anything below that is "safe". if you're aiming for any sort of major empire however you will likely need to go over every once in a while though and you have to remember that overextension means more than just a + to revolt risk. Your trade income gets tanked, your diplo rep goes down, bad relations will improve slower and perhaps the most annoying thing, all rebel stacks gets a size modifer from your overextension, so really high numbers will kill just about any empire if you're not careful.

[Kagemin]

Originally posted by c00lizz:

Well, you only start getting the bad events at 101% so anything below that is "safe".

That's not quite right, even if it rarely actually makes a difference. You get the nasty events as soon as you go over 100%, and depending on the modifiers there can be fractions in the overesxtension values.

[c00lizz]

Adm Eff keeps it in whole numbers, the fractions only show up when colonies are involved.