spray basting is great! Instead of pinning the sandwich together and then doing a running stitch to stablize the entire thing..you spray between each layer with the spray. The sandwich doesn't slip around. I use it for my longarm quilting..I don't attach the top or the batting on the front bars. There are several brands out there. I am parcel to Sullivans quilt Basting Spray. Happy Quilting..
blessings,