I have a wing that has the balsa loose at the seam where two sheets join together. The joint is together tight but there is just a little pucker about 3/8 inch wide. Not really a pucker though just can tell it is not stuck to the foam. Can I use a trick of the trade my father taught me with loose veneer? Thin wood glue a little with water and use a syringe and a small needle and inject the glue under the balsa and clamp or weight down until dry. will this work?

This kit calls for the main gear blocks cut into the wing and epoxied . Is there any tips Or is this process pretty easy.