LOL. 20% from Traditions is FAR MORE????With the systems that I discussed it does exactly that, giving france even if it has less development far more power than a muscovy with far more development. Using development as a complete vacuum and ignoring how it interacts with the various systems in place of EU4 does indeed make it wrong, but since EU4 has systems in place to deal with someone being insanely high dev ahistorically perhaps, I don't see how it doesn't represent the population difference pretty well.
Some Maths: 18 mln French vs 6 mln Muscovians is 300% difference, not 20%
With "far more" logic, France should have had +300% manpower more than Muscovy with the same development.