Ming gets a lot of states, but they are all already in use at the start.
What I meant was: when you remove a state, that demotes the cores to territorial cores.
So, lets say I have a state with Bai culture. But I just conquered a Manchu area.
Is it better to revoke the state and demote the cores of the Bai state, and give it to the already accepted Manchu culture state?
Or is that just a waste of the sunk adm points in the Bai state?
Interesting. You don't think the 25% autonomy is worth it?
I would guess that you would suggest investing those adm points in Development for Institutions instead?
Right... well as you increase your Admin Tech, you get a lot of new States capacity. In my Ming campaign I expanded very aggressively until 1590 and reached ~2900 development. I don't remember being seriously constrained by my State limit. Ofc I didn't make states out of land unless I had most of the provinces in it and didn't State Taiwan until later cos it only had 3 provinces, but in general I didn't feel constrained by State limit.
And no State Cores are totally not worth it pre-reform gov. If you make a territorial core a State, the autonomy gets dropped to 50% anyway. You don't even gain 25% further reduction from state cores, it's a total waste.
In my game I expanded rapidly from 1444 to 1590, whilst developing provinces for institutions (I spawned Colonialism in China though) so I always stayed on time tech-wise. I then spent literally 40 years full coring all my conquered and colonized (non- Colonial Nation) lands after I reformed government in 1609.
Edit:
It just occurred to me why I didn't feel constrained by the State limit, I typically always kept 1 or 2 vassals around which helped me get around the limit, and by the time I integrated them, I'd have improved my Admin Tech to unlock more states. For example I had Haixi for Manchuria, Kutai for Borneo, Pasai and Malacca in Sumatra and Malaya and Lan Xang in Indochina.