I tried to track it with a graphical indicator, but it seems it's of little usefulness since it alters so rapidly it doesn't seem that great for "lining up" ice lances or whatnot. Is there anything that can make it more useful than a flat increase.
It's as if the designer first thought "that might be cool to line up abilities when it's max" but the way it changes rapidly, it doesn't seem useable that way.