Spent a bunch of time in the shop today trying to finish the inside of the skirts so that I can glass the back end together. Sanded the inside of the left skirt with 80 grit, followed by 120 grit. After that fun little exercise, I wiped it down with MEK and applied some Super FIl to smooth out the grain. While this was drying, I sanded the right skirt (Super FIl was applied a few days back), then shot it with sanding primer. Also had to finish a fillet on the right skirt that did not reach all the way to the top of the down tube. After lunch, I lightly sanded the primer on the right skirt—looks ok to me. Lightly sanded the left skirt then shot it with sanding primer.