Started on the left aileron trim option. Zenith didn't pilot drill or cut the trim outta this skin. Therefore I drew it and cut it out with the Olfa knife (scary). Noticing that the planes show the aileron cutout channel (6-ATO-1-3) gets inserted into the I/B inner rib (so it can be riveted to the top and bottom of the rib for stability) but has to just butt up to the face of the left inner rib (O/B), I decided that I needed to create a brace that joined the rib to the channel. That way all of the stresses aren't pulling/pushing on the skin since the channel only riveted to that on the left side.