I too decided to try spray basting when I found a group of finished tops in the closet. I am not a quilter but decided to stitch in the ditch after basting. The only brand I could find was Dritz and it worked! My husband and I use the spray baste outside and I spray the fabric, not the batting. It even worked on poly batting. We laid the sandwich down on an outside bar. I stitched in the ditch and used a regular pressure foot, not the walking foot as I have trouble controlling the speed. I completed two projects but have six more to go. The majority of these are 50x70... not sure I would be brave enough to try a larger size, and these will be used for comfort quilts.