I found a Bloc-Loc 2x4 flying geese ruler in my ruler drawer. It shows you at a glance just how horrible your geese are.
I have about a third done. One goose is perfect, most are annoyingly wonky and inaccurate but should be usable, and a few I will probably have to do over (or make a smaller quilt). I will finish tomorrow before starting the new clue. If we have more geese, I believe I will research paper piecing and try them that way, or ditch the aqua triangles and use Deb Tucker's trim-down Wing Clipper.