I would observe that I think second guessing is a healthy part of any well controlled process and the goal of this framework is certainly not to restrict second guessing, rather itâs to improve judgment quality and thereby the acceptability and credibility of the judgment with those charged with second guessing them.
They can be flat root, fillet root, or major diameter fit. The purpose of this type of spline is to allow for angular misalignment between the shaft and mating detail. This is accomplished by crowning the male tooth. The tooth (usually) has a symmetrical crown about the centerline of the spline face-width.
Pack the soil firmly around the roots and attach two or three guy wires to the tree, anchoring them about 12 feet from the trunk. If your mature tree is lying flat on the ground with the roots still firmly planted, the situation is hopeless. You cannot fix this type of leaning tree and the tree should be removed.