Situation Brief:

The incompatibility between these two mods is due to the similarities in some of the civilization bonuses with the group bonuses. While both mods are not technically incompatible, they currently do not coexist seamlessly because some of the bonuses are repeated twice or further amplified to unintended heights. All of the examples I will detail below are instances I think are in direct conflict with both mods that need to be changed with a suggested solution. I understand this can shake up a lot of the bonuses and that other players do not intend to use both mods, but I hope for those who do not want to have to pick a choice between two great mods, that this can provide much needed consolation.

Conflicts:

Aztec

Expanded Civilizations:
Combat victories grant faith equal to 50 percent of the strength of the defeated unit.

Sui Generis:
Mesoamerican Group - Melee units produce faith from kills.

Suggestions: Modify ability to grant different reward for kills (i.e.gold) for either the group or civilzation ability or remove entirely and replace with ability related to generating a type of yield with military units (i.e. receiving science for building military)

Canada

Expanded Civilizations:
50% reduced tile purchase cost

Sui Generis:
Colonial Group - 33% reduced tile purchase cost.

Suggestion: Remove Canada's discount and replace with different ability for Expanded Civilizations author

Egypt

Expanded Civilizations: Resources next to a river provide double their normal yields. Begin the game with the Irrigation technology unlocked.

Sui Generis:
Kemetic Group: Resources on river tiles provide double their normal yields. Start the game with the Irrigation and Masonry boosts unlocked.

Suggestion: Since Nubia shares the same group with Egypt, leave Irrigation tech for free on Egypt (since it doesn't actually conflict). Rework doubled resource tiles in Civilizations Expanded.