I used small blocks of wood to hold the nose ribs in place at a 90 degree angle from the spar after drilling. They needed to be in position for when I install the foreward channel. ** The biggets concern is that they are flush against the spar (or close to it) and all level with each other. That's what the small strip of wood under the leading edge is for. To position all of them at the same height to one another.
