Well, I made a good choice. Riveting the skin to the spar after riveting on the counterbalance assembly to the spar was much easier. Riveted the top skin to the spar, back riveted the bottom skin stiffeners and the trim reinforcement plate, then riveted the bottom skin to the spar. Riveted the counterbalance assembly to the skin, except the last three holes to do the trailing edge. Riveted the gusset to the rib. Cleco'd in the trim spar, ready to rivet that in next.
