GalCiv and "rubber band" mechanics
I've been noticing that in GalCiv empires tend to get wiped out fairly often by mid game...at least in more crowded and smaller maps. Now I know that is to be expected, but I still find myself enjoying the maps with many more smaller empires because of all the complicated politics and trade issues that accompanies such maps -- as opposed to the maps with one or two superpowers you have to kiss ass for in order to survive.
Anyways, my question: Does anyone know if the game has any settings along the lines of a rubber band mechanic that I can turn up? In other words, something that helps out smaller AI empires and hampers the creation of super-huge empires. Thus far all I've managed to come up with is spreading out the playing field (lowering star count while increasing map size) to slow down the pace of the game. Can any more experienced players suggest a better solution?
P.S.: I also considered turning down the AI's aggression level. But my goal is to reduce the odds of smaller empires being exterminated, and not simply to stop combat alltogether.