I built a Kadet Mark II a few years ago after a long break (15 years) and I just followed the instructions. One of the wing panels was just laid flat on the table with wax paper over the plans. I put a few pins in the panel to keep it from moving around and then just coated both wing roots with Sig 30 min epoxy and pushed them together, blocking up the other side and making sure that it lined up with the plan underneath the wax paper. I put a straight edge along the leading and trailing edges to make sure it lined up and I took off the extra epoxy with my finger.

The joint wasn't a perfect match either because I reduced the dihedral a little from the instructions. The plane fly's great with no trim issues at all.

The Kadet Mark II is a great little airplane and everyone at the field will really like it I'm sure. You don't see many anymore what with all the ARFs. They fly much better than the ARFs as well and last much longer.

Good luck with your project!

Brian