I think tradition needs an additional 1 (or 2) culture per 10 people added to the 1 happiness per 10 people. As it is liberty can beat out tradition in culture generation pretty easily with 1 per city (helloooo puppets) and the reduced policy cost pick.
Maybe have the oligarchy pick also give free walls in first two cities or something like that. That would help a bit with the hammer disparity between the two trees.
Maybe have the oligarchy pick also give free walls in first two cities or something like that. That would help a bit with the hammer disparity between the two trees.