I drilled and riveted on the platenuts on the inside part of the wings where the bottom fuselage skin attaches to the wings with screws for the wing root fairing, also riveted the platenuts on the top of the wings through the wing walk double layer skin. Both wings nearing completion. I dimpled the skins using my pneumatic squeezer, the plans say to countersink on the top with the wing walk double plate, but my squeezers seemed to do the job.