I seldom use SITD because I would get puckers no matter how many safety pins I used, and that became a moot point once I started machine quilting on a frame. The other day I needed to use the SITD to help out a friend with her project. We used Elmer's washable glue to baste the batting and the backing together. That worked like a dream with the walking foot. We were impressed how smooth the back turned out. Guess I will be donating all those pins to the next silent auction!