I don't know if it would help or be applicable for this, but if you are pulling very large logs there may be an easier tool to use that may make it safer and a lot less stress on your tractor. When I was a power lineman, we had a pole changeout that was in a swampy area in Michigan's upper peninsula. Dragging these 70-80' cedar transmission poles a chore to say the least. What we came up with is a small chain on two-wheel dolly on the far end of the pole like a tail wheel on a plane. we had a Bombardier track for skidding. Once we put the "tail wheel" on the far end and picked up the butt end with the tracks winch it made moving those poles so much easier. Doing this where there is a lot of stumps or other things that could catch the dolly may not be a good choice. Just a thought.