I mounted the wing root stub ribs. I had a problem with the wing template as it doesn't completely match the wing. If I match the forward part of the template, there is a significant gap aft of the spar. I elected to have the template match the contour aft of the spar and used a couple .025 inch shims, and snugged the rib up to the template with a couple tie-wraps. After talking things over with Brian Sorenson, I decided to wait before skinning the ribs, as I could move the skin forward or aft to match the flap trailing edge, and I don't really know whether the skin should be moved inboard or outboard. Basically, Brian suggested keying the aileron to the outboard wingtip rib, and then the flap to the aileron, and then the wing root stub skin to the flap.