Last thing I wanted to check before the week end, I hope to go to a contest, is the lower wing position, square to the fuselage.
It take time, you have to measure a couple of time to be sure you have the wing perfectly centered, that's the easiest part, and then that from aileron tip to the rear of the fuselage, you have the same distance on both side of course ...
Then you can proceed and glue the already covered plywood reinforcement on the lower wing.
The pre-drilled holes on this part were perfectly positioned.