I lightly sanded the area around the left side pin cover and back along the joint for about 6”. Then, I shot another coat of sanding primer. After this dried, I sanded it very lightly with some 320 grit. Next, I gave it a shot of primer. I need to look at the cowl tomorrow in the sunlight—hopefully, this should take care of the paint gap issue for the pin cover as well as the slight mis match of the upper and lower cowling.