Tried 2.1 with USA and Germany. In both games i noticed that Opium and dye supplies didn't really match the demand. This led to certain POPs not getting luxury goods and factories not being able to produce regular clothes leading to very small supply. Also in my USA game my nation was struck by high levels of unemployment despite having high industry score. Basically RGOs weren't able to provide jobs and POPs weren't converting to craftsmen etc. at sufficient rates. Perhaps POP growth rate could be made in to smaller or RGOs made bigger or less RGO size decline events?