Today I finished up assembling the rudder. I first finished-up riveting the end ribs. The I back-riveted the trailing edge rivets about halfway. I then used my large back-riveting bucking bar and swivel-mushroom set the rest of the way. Once the rivets were set, I switched sides and used the set on the shop-head and the bar on the manufactured head. This smoothed out the skin around the double-flush rivet. Now you can't tell which side is the shop head without very careful inspection.
