Um, I don't think I am using this bonus from proximity to general enough. I tend to leave my general in a central location on the battlefield, but 50m does not sound much (if your general is behind a line of spear units, how many spear units would be affected? 1? 3? Presumably not 5?)

Maybe I should move my general more to where the critical point is. Rather like Wellington at Waterloo. Easy enough to do when they are in unit of royal knights.