[Baalz]

Oh, another thing I forgot to mention (which goes hand in hand with scale choices) is province population variation. If you're not site searching much yet, it doesn't really make a big difference to try and root out those lizards/amazons from a 2k population swamp/wasteland province. Even with equal scales there can be quite a divergence between income and province count - it very well might make sense to forego expanding every turn if it means you can instead take out a fat farmland province stuffed with knights every other turn.