For some reason I was a little timid about building the Delta wings. I even considered buying them from NGA or Zach (composite) but after building them I'm glad I did! I had to purchase some new .035 6061-T6 aluminum as somewhere along the way I used what came in the kit for something else. Fabrication went well as did locateing and drilling them. I'm going to go ahead and prime them then install as I'm going to wait to paint and want to have these on the wings for the test flight.