Fiddly day..time to insert the close tolerance wing bolts. Had to remove the fuel diverter valve and pies to get to the holes. best practice is to insert the bolts with the heads forwards, and this also means checking torque i the future will be easier as the nuts are accessible. The wing tip was supported on the engine hoist, so it was easy to adjust the wing incidence to get the holes to line up. I used the endoscope down the bolt holes, which made it easy to adjust the wing position to get the holes to line up. They are still bloody tight to get in though... Nuts applied and torqued up, and the rear spare bolt installed. All felt very solid. Remembered to fit the AN4 bolts into the nut plates on the spar. I can see how some people have forgottent to do so in the past.
