I picked up a can of spray starch just to try it out. I put it on some material that I had washed and dried and ironed with steam. I was thinking I was going to have to totally wet it again because the tiny wrinkles weren't coming out.
WOW!!! I sprayed the starch on the wrong side and not one wrinkle, it's just stiff enough to have some body, not floppy. I let it soak in good and no residue. How did I ever piece without it? I'm going to use it on the dahlia center to give it some body so I can work with getting it centered and round.