Fabbed up a wooden aileron profile to help with placement of the wingtip rib. Clamped the rib in place and moved forward and aft until it matched the wooden aileron. Just to be more accurate I made two inch tic marks on both the wooden rib and wingtip on both top and bottom. Measured the distance at each tic mark and compared the two. Came in very close so I match drilled a hole from the wingtip to the rib. This is as close as I can get until I mount it on the wing and trim the trailing edge.
Also drilled out the remaining 3 Adel clamps for AN4 bolts (1/4”) to mount the ElectroAir coil pack to the engine mount.