I found this sassafras leaner out back,as you can see it is very dead. I chose to put a wedge about 4 feet up,because it was not decayed there.Then I made a plunge cut just behind and above the wedge.Then I cut towards the top side of the trunk. It simply falls off with no problem. I was taught this cut about 40 years ago by an old logger that has since passed away.I have cleared river bottoms and have literally cut dozens of trees like this,never had an accident,injury or saw mishap.Hope these pics help.