Here’s the only thing I see that is an error. LC and Jim B. Argued about this all the time, and after researching this thoroughly and after hinging thousands of trees, you want to make your cut perfectly level and flat in the direction it naturally wants to go, only as far into the tree as necessary, if you can. This allows the tree to keep itself supported, while you push it over. To Fell A Tree is a great book that describes this in detail and I would say read that for more info.
If you cut it at an angle like in the pictures, you are essentially making a “slide” for the top of the tree out of the stump, where all the weight is now resting, and the only thing holding all the weight of that tree is what you haven’t cut. If you look at that cut I circled, if you cut it flat and push it over, the top of the tree should stay attached to the “stump” at the cut level... (most of the time)... and fall predictably.
