Then I got the leading edges installed. I used alphatic for this, but I wish I had used thick CA. As you can see in the picture the LE 10x10s overhang the base LE by about 2mm. This allows you to pick up the back edge of this block by applying downward pressure on the front. Bad design. They should include some 8x10s or better yet pre shape the LEs! So, using Alphatic gave me too much time. I had a hard time clamping for this reason. Using thick CA, I could have held it together by hand. There's really nothing to line up, just needed pressure against the wing ribs and the laser cut base LE. Something to think about.