Got trim channel drilled out and placed. Started nose skin placement. Came up with a way to get holes on skin drilled perfectly even though removing the clecos on the spar leads to minor (.5 to 1 mil) misalignments of spar and tip rib. Basically: do not drill all the way through the skin with the slightly misaligned skeleton because the skeleton would have possibly misaligned holes with skin. Drilled part way through skin, removed, drilled rest of way. Worked perfect: Absolute alignment of holes in skin and skeleton when clecoed together. (have vid hopefully on youtube someday ...