I taped the canopy down tight and marked the final trim lines on the side. Afterward, I removed the canopy and used the belt sander to sand up to the lines.
Next, I laid out the holes that attach the canopy to the side channels and skirts. I ended up using ~2 3/32″ (instead of 2″ as the plans specify) since I lengthened the side skirts.
Pulling the side skins in tight against the side channels puts a lot of pressure at the forward end of the notch in the canopy skin. I’m going to cut along the blue line a bit to allow the upper portion of the skin to flex downward and hopefully ease this transition to avoid any localized stress on the canopy which could lead to cracking.