Drill out the long wing channel and the U-Bracket to allow 1/4" bolts
Bolt the strut attach plate and the long wing channel (leading edge spar) or the u-bracket (trailing edge spar) to their respective spar.
Pitot Static hole - Step drilled the hole 8" inboard from the tip end on the left leading edge spar to 5/8" using a unibit step drill on both sides of the spar.
Found out later this hole will have to be 3/4" to accomodate the Dynon Pitot Static system. it has another port for the AOA system.
