Brief Description: Drill the cabin brace to the cabin shell
The instructions say to take care to make the holes in the cabin top perpendicular. To accomplish this, I created a wooden block drill guide at the same time I final-drilled the holes in the brace. Then I used the guide to drill the holes in the top. I immediately found out why it is a concern; there is a large void between the inner and outer cabin shell and it would be easy to misalign the holes. Fortunately, I had no problem and the brace was quickly drilled (using AN3 bolts to keep it aligned as each hole was drilled) and then removed to be reinstalled when the cabin top is permanently installed.