Clamp the sliding canopy track to the longerons and match drill the outer mounting holes. Made a decision to incorporate the Fly Boy's Super Tracks to the canopy build now. Rivet the canopy track extension to the stock track. Notch the canopy tracks at the aft top to allow the canopy rollers to exit the canopy track when sliding the canopy open. Fit the right Super Track in position and bevel the aft end to nestle next to the rear skin.