When you machine quilt you never use that spray. You start in the middle, but before that you pin with safety pins . And I mean pin. Always check on the back to see if it is smooth. Their alot of free short things to watch on the computer . Just type in machine quilting and watch how to do it. They really helped me and I never get a pucker. I have only been doing this sense Janruary and if I can do it you can do it. Look up my quilts they are all machine quilted. Josie