Photo failure as I forgot to take a photo of the wood, but I used wood to create a wingtip trailing edge closeout and did not take a photo of the wood. The wood was shaped to the extended rib and out to the trailing edge of the aileron. I used Hysol epoxy to put it in place then clamped it as you can see in the photo The trailing edge of the wingtip will be the inside edge of the green tape. The wood is in the space between the two green tapes.