Started this work session by just catching up on where I was the last time I worked on it (3 months ago. Too much “life” happening this spring and summer.)
Match drilled both HS-00001 spar doublers to their respective HS-702 spar channels. The instructions have you locate the doubler on the channel by measuring from the inboard end of the channel to the inboard end of the doubler, but two common holes were prepunched so they could be clecoed in the proper orientation. I match drilled all the holes inboard of the rib locations.