Oh, I forgot to add a tip:
It's kind of a pain to assemble at the field. Two wings are much more than double the work! Here's what I do:
1. Mount the bottom wing (duh...)
2. Secure the Cabane struts to the bottom wing
3. Set the top wing on the center pylon and get the mounting bolt started in the pylon blind nut. Don't tighten it.
4. Pop the Cabane struts into place on the top wing and screw in the bolt to the Cabanes but don't tighten them.
5. Go back to the center bolt and snug it down, but not all the way
6. tighten the cabane bolts
7. finish tightening the center bolt.
Once you do this a couple times its fairly easy. The hardest part is locating the center bolt into the pylon. I marked the side of the shim to show where the center bolt hole is located so I can find the hole easily.