You will see a graph similar to below. Due to space limitations I have only shown graphs that most graphically demonstrate changes. The large peaks and valleys show that the corrections were not enough to stop movement in either X or Y directions. See result of change below. I am trying to achieve one arc sec RMS or better tracking.
Lets try to get better.
Set agressivness to 8 and test again. See result of change below. As you can see on the graph, my calculations at bottom show nearly acceptable tracking. Results below . I won't bore you with any more details, you can see that a graph is worth a thousand words.