I just finished a game using this new strategy and achieve domination victory in year 1700. Expences problem with overexpanding can be solved with vassalisation of oponents. I first attack Louis in 1200's and he capitulated with 3 cities left. Then I sold him every extra resource for money I had. So I received about +50 something gold per turn. During war with him my research rate was 60%. After his capitulation never below 80%. After him I attack next oponent... Like with Louis sign open borders, gave him Currency and sold him resources. At the end Brenus was only surviving oponent, 3 vassalized, 2 destroyed. I think trade is the key for good game. And of course I forget to say that I had 3 founded religions with 3 shrines and banks, grocers, markets in founding cities.