Today was simple enough.. I just riveted the stiffeners and trim plate to the left elevator skin which was dimpled yesterday. Back riveting is a piece of cake. And I used only one piece of tape for the whole job... I can see why Vans has you do this before fitting it to the skeleton for drilling. It was difficult to get in there with the rivet gun since the skin was already partially bent from being put on the skeleton. I got it though. But I did put some masking tape over parts of the gun that were rubbing the skin while I was forcing my way in there...