So, here is the piece soaked in spray starch and scrunched up in the cup.
And here we are dried and patted out. It doesn't look as wrinkled as Nellie's.
Here's another view.
And here it is based to the batting and back fabric. Ready for quilting! I don't see the ridges and wrinkles I see in Nellie's, so I'm not sure about how this will turn out.