Today I was able to snag a few minutes to attach the balance rail. When I did the last dry run, I drew a pencil line on the inside of the case bottom along both sides of the balance rail to mark its permanent home. The rail was a hair short - too slight to need a shim - so I inserted some shiny cardstock I had handy. After removing all the pieces from the dry run, I marked five screw holes (being careful to avoid any balance pin holes) and drilled through the bottom of the case to accommodate the 1-1/4" screws provided. I used the countersink on the bottom exterior of the case so the screws would go in flush. I squeezed three dots of glue on the bottom of the balance rail, set it in place inside the lines, added my little cardboard shim, and allowed the glue to set for 30 minutes. At that point, I took a smaller drill bit and drilled up through the previously-drilled holes and into the rail. The trick here is to keep the drill bit perpendicular so that when you screw the rail down, it doesn't shift off position because your pilot holes are off. I did my best. I knocked the rail off the case, scraped off the glue, and then reapplied a layer of glue to the bottom of the rail and the two ends that would attach to the hitchpin rail and wrestplank, set the rail in, and drove the screws home. It's drying as I type. 
