I played a bit over the weekend with the 6-1 version of CBP and jma's flavor's downloaded from this thread. Seems like I am late for the party again, as Gazebo released a new version again today, but I think it did not touch jma's falvors, so my comments below are probably still valid.
My settings were: Epic, Emperor, Huge Communitas with low sea level, 18 AI Civs, 16 CSs. Bunch of other mods, but none altering flavors or adding new civs. The only change of rules is that I set min distance between cities to 4 tiles. I have played 351 turns and I am in the Reneissance era now and I have been very happy with the AI performance.
A few comments about my play-through so far:
1) Civs expanded quite well in the beginning, the civs around me expanded at similar rate as I did. All civs now have 4-8 cities, except Russia, which has only the capital - a strong city with a good infrastructure. I have not uncovered all the area around it, so I do not know if they did not have enough space to expand or what was the actual reason why they did not found any other cities.
2) I have found quite a lot of unclaimed land in Medieval and reneissance era though. It seems as if the AI civs did not want to expand beyond 6-7 cities. I claimed some of the land for my own. I can see that my French neighbor has a settler parked near the capital, but they do not send it to the unclaimed land next to their current territory on the same continent (they already have 6 cities by the way).
3) It seems that there have been no wars at all so far. I checked the names of all cities owned by the AI civs in the Diplo screen and there are no foreign names (I do not know about Huns, but they are so backward, that I do not think they have conquered anything). I started next to France, Napoleon became hostile very quickly, coveted my lands, hated me for settling near him and for me telling him to mind his own business when he protested against my expansion. He also had a stronger military than me in the early game. Yet he has never DOWed me. I know I should not base my conclusions just on 1 play-through, but it seems that sc369 had a similar experience.
UPDATE: Indonesia declared war on the Incas! Yeey!! ... I mean ... that is unfortunate, war is a terrible thing
4) It seems that AI produces enough units now and upgrades them properly. Yet they do not go bankrupt. It seems that jma managed to break the vicious cycle
5) About one fourth of civs have negative GPT a bit, but nobody is going bankrupt probably thanks to the liberty policies granting money upon expanding territory, etc. Some civs were a little unhappy in the Medieval era, but now everyone is happy. The Celts are the scientific leader with 38 techs, I am second with 36. Russia and Huns have 21 techs. Unlike in my early May version games, nobody is producing 0 science beakers and even the backward civs are researching new techs.
6) As somebody else mentioned in another thread, CSs have close to non-existent armies - usually something like 1-2 non-resource melee unit and an archer.
