(2.0 hours) Mounted angle brackets on jig beam -- a royal pain. I had to make shims and relocate the brackets 3 times. (The outboard 2 brackets on each side must be placed either outboard or inboard of elevator hinge brackets, unlike what they do in the Orndorff video.) I figured out that I should to use a center punch to start the holes in the wood, otherwise the grain of the wood pulls the screw sideways as it is driven.