My Aegon is sig level 73 which gives him 50.57% of his hits to carry over from fight to fight. However, I have noticed that it is always less than half that actually do. When I first duped Aegon I took him to sig 66 which was 48.6% or so, and I wrote it off as a rounding issue. However, it became far more obvious that it isn't working correctly when I was able to push it to over 50%.
The sequence in the picture is in the monthly quest, Master level, each picture is in order, I also have pics of the remainder of that path, same story. Please post if you have also noticed this issue, the more evidence the better.