Wouldn't stacking ships help with game performance?
I'm no programmer, but after reading Frogboy's article on RTS's and talking about the difficulty being in unit rendering, it made me wonder if stacking units in SoaSE would help a lot. For example, instead of showing 100 corvettes, show 10 packs/squadrons of 10, just with visual indicators. When one of the units die, it becomes 9 packs of 10 and 9 units. I know it wouldn't be graphically as impressive, but if it helped with the lag in big battles and general game performance it would be worth it to me.