I am assembling a SIG Senior ARF. So far, it's been nothing really unusual, until I went to join the wing halves. I intend to glue them together, but there is still the matter of installing the aluminum dihedral brace which is supposed to slide into pre-built slots in each wing half. It won't go in either one without (in my opinion) WAY too much force. I haven't even got it to fit in them all the way even though I sanded the wing openings a bit with an emory board and the cleaned up the brace itself with a drum sander on a dremel to get rid of some flashing that I thought might be the issue.

Has anyone else had this problem, and if so, how did you get past it?

Thanks for taking the time to look at this postand thanks in advance for any suggestions.

Dzl