Started the day really early with attaching the fuel tanks to the wing spar. Found the need to file away less than a mm from the outer edge of the fuel tank in order to attain a tight fit against the skin of the outboard leading edge. This required attachment and removal of the tank 3 times to get the metal removal correct. Once complete the tank attached without much issue, just lots of screws. Got a bit of help from Andy again to finish riveting the outboard leading edge of the right wing. All the leading edges are now complete. Finished with a little electrical wiring of the stall warning and rough in of the Pitot and AOA lines. Riveted in the CPC's into my fabricated wire harness holder at the wing root without issue. It actually worked really well. Next step is to continue wiring before attaching the bottom skins.