Match drilled the upper part of the Rear VS spar to the fuselage, then final drilled to accomodate bolts. Clamped aluminum angle straight edge (made previously) to the fuselage and measured the squareness of the VS. After almost an hour of minor adjustment and multiple checks to ensure accuracy, I finally drilled the forward VS spar to the Attache Plate and Spacer, then final drilled bolt holes used to attach Attach Plate for Forward HS spar.
