ORIGINAL: DavidAgar
You can also wax paper your wing, mix up some resin and micro ballons into a thick mix, lay a layer of the goop on your wing saddle and then install the wing. Allow it to dry and sand to finish. Gaps be gone. Good Luck, Dave
I would go with this method if you have the micro balloons. Very easy fix. A good mix is 3 parts micro balloons to 1 part epoxy.