Match drilled all the stiffeners, and the reinforcement plate. Deburred and dimpled stiffeners and reinforcement plate, along with the platenuts. Decided dimpling would be a better choice than to countersink the platenuts, as I've seen some other builders do. Material seemed too thin, less than .040, so that usually calls for dimpling. Started taking a look at the trim servo (motor) and how it gets installed.
