I primed the right leading edge parts. Unfortunately I didn’t mix enough primer on my first attempt, so I had to make some more. 
You can’t really tell from this picture, but the quality of the primer was not great on the skin. The primer came out really rough. The problem was caused by the air knob being too closed off. I might need to sand down the area that contacts the ribs.
While I was waiting for the primer to dry, I spent a little time getting started on the flaps. I just set up the parts for match drilling.