Yesterday I finished sanding the fuel bays, then vacuumed, blew them out and cleaned with MEK. I also laid out the position of the fuel bays on the lower skin with Gorilla tape, positioned sticky side up on the capstrips and spars. Today I sanded the lower skin, cleaned and prepped it for the Rhino 9700 epoxy primer, then applied two coats about an hour apart. Tomorrow I'll seal the bays themselves.