1. Countersunk all the remaining attach screw holes in the skirt. 2. As I was doing this, I became aware of an issue with the original plan to attach the canopy with 6-40 screws--a problem I hadn't considered up to this point. The 6-40 flathead screws have an 82-degree head angle, which means the countersinks are pretty deep. Unfortunately, the carbon fiber skirt is too thin to countersink that deep. This would result in the top row of screws protruding slightly. It appears no one manufactures 6-40 flat-head screws with a 100-degree head angle. So I now plan to use Vans stock CS4-4 rivets in those holes--rivets which have a very shallow head angle that will fit just fine in the current countersinks.