In Fatmilak on Dwilight my Lord has a 50% estate and so does his knight. But the efficiency of the two estates is different: the Lord's estate is 82% efficient whilst the knight's estate is 84% efficient.
I tried resizing both estates to see if that made a difference and every time the knight's estate was 2% more efficient (until I reached 100%). I created a third estate and set all of the estates at 33%. The Lord's estate had 99% efficiency whilst the knight's and the empty one both had 100% efficiency.
I was playing around here:
http://battlemaster.org/testing/GovernEstates.php if you needed the link.
