Quote Originally Posted by TinCow
It would be best to have a save where there were a large number of provinces clustered together (i.e. all of France conqured or British Isles + parts of France). This will allow for a better civil war simulation, as a war between two Houses with provinces on opposite sides of the map would be very slow. I expect any mod we pick will have more provinces than vanilla, so this kind of expansion will be easier, but for the test game it might require tripling or quadrupling the starting provinces, depending on the faction chosen.
I have 21 or so provinces, but they are spread around. I have all of the British Isles and Caen (8 provinces) with 4 or 5 generals. An army with a general in Africa. Tunis with no general. And then Outremer. Which is pretty much all of it south of Turkey. And there, there are the rest of my generals from a few different families.

It's not ideal but it could be interesting. There are enough generals in Outremer to form two factions. And the third faction would be sitting off in England itself.

It's an option.