Well, I did it! I could not find 505 at the three local fabric stores, so bought Sullivan's Original Basting Spray. Spread a sheet on my deck and followed the directions which said to spray on fabric not batting. Seemed to work!! Wrinkles were easy to smooth out and adhesive seemed to hold well. I have the layered quilt laid out on bed and thought I should give it a break, hope it holds together for the machine quilting. Thanks for your advice, this board is full of wonderful ideas and inspiration to try new techniques.