Thanks for your input Punkbass, but don't think you should ever switch govs, during war-time, even if you think its nearing the end.
Are you saying its the size and number of towns/cities that should determine Feudalism or Republic, rather than civ area size?
Tomoyo: I don't understand what you mean by "finish the research drop"? Also, are you saying that I should expect it will take some time to "fine-tune" Republic to my particular game situation?
Sorry if I'm asking "beginner-type" questions. I trying to improve to move up to Emporer level.