RE: Sig Somethin' Extra
This plane is one of my all time favorites. I've built 3 of em, 2 for me and one for a friend. as stated above there are a few things to know before you build.
wing J hooks, I put nuts on the back of the J hook to give it more strength. Then I use zip ties to hold the wings together.
Ignore the instruction to glue the wing tube in. Just slip it in when you assemble the wings to the plane. Why?? as stated above, you can't get the fuel tank out if you glue this tube in.
and the most important thing, prepare to have a blast flying it. I had 135 flights on my first SE before I dumb thumbed it and re-kitted the plane. Read to trim flight my second one this weekend. This plane is a blast to build, and even more fun to fly.
have a great time