Before I list a suggestion, I would just like to comlement you on a wonder, brimming with features mod which adds som much new life to civ4 as to be a new game.
The only problem I have is in the balce of the game. Although I am only now entering the medieval ear (and some of these problems may not be presnet in the future) City size just seems to be way to big for the time period, and allthoogh I love all the new building my happiness, unheathyness scales are at somthing like 30-15, 30-15. Its almost like you have provided the candy, but without palin food to compare it with is loses its appeal somwhat. Now, I basically only paly of giant earth maps, and hence (Gengis, in this case) I guess the the liberal spred of bones around the map is skewing my experieces somwhat, and yes if I don't like the balace I can mod them myself, but its just an idea. So far I have, uped the unit and buidling percenat on snail from 250% to 550%, growth from 600 to 700 (This requires a growth reduction 100--> 85%) in the ancient era, or settlers take like 180 turns. Not exactly sure what else can be done as I am a very inexperieced modder, but I think the vannilla bts had a farily good balance (you know, desperatly trying to research monachy for the garrison happyness bones because you city were all right on the unhappiness threshold) however, I after playing your mod, I will NEVER touch vanilla again. Truly, great work.