It takes an amazing amount of time to remove the blue film from the exterior rivet lines. After 3 hours of doing that, I finally got around to deburing the outboard leading edge skin. Around then the rain started to move in and I wanted to get my clean truck (cleaned it yesterday) back in the garage. So all done for a week or so. Essentially I am just doing a lot of busy work deburring until a warm enough day comes around for me to prime the wing ribs.