I fold the top into quarters and pin the centers of each side. Then I do the same with the back. I lay the back out and tape it down to the table (when I have room to do so), lay the batting out, fold back a section and spray the batting. Then I smooth it over the fabric and do the same with the rest of the piece. Then I line up the top, matching the pins in the center of each side, fold it back and spray the batting. Smooth the fabric out and do the rest of the top the same way.