I'm not exactly sure what you're asking. Are you trying to add cultures and not just fix up cultural borders for various dates? I'd hope not since I already went a little overboard with cultures and Symmachus is still finding characters I missed from the cultures I've already done.I've completed the restructuring of the Central Germanic cultural map but I've got one last doubt. Since the Silesian culture is already present, should I also split off the Germanic Pomeranian culture from the "saxon" tag?