Hi Rich. Thanks for you reply. I figured out the wing joiner wedge, where it goes and how to install it. But the (4) balsa wood cubes approx. 3/4" square I can't find reference to at all in the build instructions. I added in my photo gallery a picture of the kit parts which shows the wing wedge which is next to the cabane parts, but the (4) balsa wood cubes are not shown. Maybe they are in the bag next to the vertical stab that contains the engine mount hatch cover which is barely visible, and I haven't a camera to take a photo of them, but they are as I said above. Any ideas as to what they are and where they go in the build?
thx, john