Thanks, icerinkdad!

The Ring GB has undercarriage and controls installed. I patched the various gouges around the foam board edges with Smart Non-Shrink Wall Fix. It is lighter in weight IMO and better than standard spackling compound for fixing dings and imperfections in foam, balsa, etc. It is snowy white in color, is easy to spread with the fingertips. Next is installing the wingtip line guide and preparation for painting.