I riveted the VS spar, then assembled the rest of the skeletal structure only to realize that I had forgoten to prime the nose rib. I couldn't proceed until that was done. I used the touch up spray gun to prime the nose rib, despite trying it on a sample piece the application ended up to thick and there were large runs. I had to wipe it down and spray again to get rid of build up on the joining surfaces.
flush riveting on the lower part of the VS spar
the nose rib and sprayer(empty and clean) are in front of the heater to help warm them