I use Sullivan's spray and lay out on two tables. For lap size quilts, I lay backing wrong side up and then batting. I fold back the batting and spray, smooth the batting with my hands, lay the top on the batting, smoothing it, check the back side and smooth if nec. and turn the sandwiched half and repeat. I do not tape or clip the backing. The spray allows repositioning and it is better to do so than when using pins. No need for pins or thread basting. It works for me.