RE: 1/2A 150ish Build
After the glue set, I adjusted the outside edge of the tri-stock, particularly right around former "F2", where there's a fairly sharp bend for the fuselage sides going back to the tail. The sanding block is a couple of pieces of scrap balsa with 150 grit CA'ed to it. Also noticed that I screwed up just ever so slightly on the angled cut at the rear of the fuselage, and left a 1/16" gap between the two pieces of tri-stock. Not a big deal, but irritating.