I want to thank everyone for their comments and just let you know what I ended up doing. It was a bit from a number of suggestions, which worked for me, and the tree is now down on the ground, and I was able to walk away with ending up on YouTube! I have few pictures to share along with final comments on some of your suggestions. Again, thanks for all the responses.
I have a number of 2-inch tow ropes rated at 3,300 lbs each. I had not considered pulling the tree down before reading your suggestion. Thanks.
Here was my initial tow strap setup. I had the strap wrapped around the trunk up about 10 feet high. Two straps, each 20-feet-long, giving me 40 feet from the tree. More than a safe distance for me to pull on the tree. I had planned on hooking it up to my vehicle, but when I tugged on the rope, I was able to move the trunk by armstrong. I knew at that time I would not even need to hook it up to my vehicle.
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I was all prepared to use an anchor tree and use some kind of redirection if needed. But when I pulled on the tow straps, the tree moved, so I knew it would not take much to take it down.
Although the tree moved when I pulled on it, it was still too strong for me to pull it down by myself. I cut a notch in the direction of where I wanted the trunk to fall...
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Then I did a back cut part of the way, but not nearly as far in as I would normally with a healthy tree. The wood was so rotted, that there was practically no resistance to the chain and I did not want to overcut and risk the dumb tree falling down on me...
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Exactly, but pulling the tow straps fell the tree exactly where I wanted it. All it took was one or two tugs from me and the tree came down. Here is a look at the "hinge" on the stump...
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Nothing pretty about that hinge. It was all rotted and punky. If I had not pulled it down, I'm not sure how the hinge would have broken and where the tree would have finally fell down.
Here are some pictures showing how far I was from the tree - 40 feet away. And then a close up of the top of the trunk to give you an idea of how rotted the tree was even 15-20 feet high...
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Yep, I made a shallow face cut and the back cut only went in part of the way. I did not want to take take this tree down with the chainsaw.
I decided to burn all that rotted wood. I moved a burn ring to the site and have started soaking the stump with oil/diesel mixture. I keep adding oil/diesel for a few days and let it soak in good.
Here is a picture of the whole tree on the ground. I cut everything up into about 12 inch rounds. The wood was really rotted out and each round weighs almost nothing...
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My tow straps have loops on both ends. So, I never had to put any knots in the straps. Honestly, the tree was so rotted out that I could probably have pulled it down with a 3/8-inch nylon rope. The tow straps are just much safer.
Again, thanks for all the responses and I just wanted to tell you all how it ended well.