Ok, here I go with my 2 cents:
Space Flight and Satellites are ok like that, IMO. Sputnik came before manned space flight. So Satellites-->Space Flight is perfectly ok to me.
Irrigation canals and Levee are maybe just a bit too strong, but I wouldn't tune them down; as Arkatakor said, bonuses are needed in order to keep the game balanced.
About techs being merged, I don't like the idea and I don't see any good reason to do it: "too specific" isn't a good reason; this mod is meant to have various tech paths and I don't like the idea of removing some techs just because they're "too specific".
Standing Army also is good as it is, IMO: as Arkatakor said, it should not come too late; especially since there would be little other alternatives to Pacifism
Then again, why should cartography be researched earlier?
I probably agree on Caste and Divine Cult.
Regarding culture and city flipping. You're right, it's probably almost impossible now. But you won't solve your problem by overpowering culture, because that will affect EVERY civ. Moreover, it won't work because as the game is now, you can't conquest a tile near to a city no matter how much culture you are producing. That's another reason to play with revolution: when your culture is the main culture in a foreign city, you can bet it will be difficult for that foreign civ to hold that city: so you CAN use your culture to influence other cities. And bear in mind that enhancing culture again will throw off balance the game in other aspects as well: for example for people playing with Cultural Victory or Mastery Victory. So overpowering culture again won't solve anything.
In my current game, I'm just about to start the transhuman era and I have only 1 Legendary City, while my main opponent has 4 of them already. Since I'm playing with Mastery Victory, this means that he's 90 points ahead of me (and I'm playing with Catherine, which is creative so +
).
And there's another thing; how many games have you played with AND2 rev>586? I've tested dozens of them, and believe me the game IS balanced and it's not easy at all to win. I don't think that playing a single game that doesn't turn out good means that the game isn't properly balanced. Just try more games and more options. You'll see things under a different light.
Edit: @Jayman1000, I know Sevopedia is a mess sometimes; I plan to correct everything that's wrong right now, thank you for your tip!