A progress report and some photos I didn't get to before.
A completed wing. White parts laid down first, outlined by black parts. Some mystery misregistration occurred. Later found that it was probably fabric stretch. The design should have been built and stitched from the center out. In addition, a heavier cut-away stabilizer should have been used. Overall, not great, but not too bad.
Now black laid down first and white stitched on top. This worked much better, but the stitch count is still very heavy. Didn't have any misregistration problems because the entire shape was laid down in black as a background and the white was stitched on top of it. A few threads to trim here and there, but it worked. Another successful "test".
Big Al does most of the digital work and digitizing while I fiddle with the technical aspects of the machine. He often complains that he can't get anything done. Wonder why? When Schmoopie wants lovin' & scratchin', she wants lovin' & scratchin'. "Damn cat", he says.