Question for the group... Working on the rear spar for the elevators, the inboard and outboard doublers have 4 holes that do not have a corresponding punched hole in the elevator spar (E-702). There are 8 holes in the doublers and only 4 corresponding holes in the spar. Am I supposed to drill the 4 additional holes into the spar? For further reference, these holes are in each corner of the doublers. Drawings and plans don't mention it (could be that I don't see it).