Here is my idea-
We swap the greek and roman cultures, in other words we give all the greek factions the roman culture and we give the romans the greek culture. Then we make the greek culture look roman and make the roman culture look greek.
Problems with this idea-
1. The romans will no longer b able to trigger the reform. (which atm affects them the most)
2.If the romans grow to strong the greek factions will never b able to build a huge city in Italy. (maybe its possible to give other provinces that hidden resource)
3.My goal is to make all the factions able to trigger the reform not just the greeks. (but at least we will have 5 factions that are able to trigger it instead of only 2 factions)