This tree was destined to be cut down. The home owner put in a second story and the area here where the root ball is now has become a footing for the support beam.
I cut out the desired size of root ball I would like to have. Most often I bite off more than I can chew. I can always cut in and then the trench becomes wider and easier to work with.
The plan here is to pull the tree off of the hillside straight into the bak of the truck.