I've become a recent convert to the spray. The only problem with it is I have all the pins I need and I will have to keep buying the spray. But to me it is worth it! It makes quick work of basting and makes quilting so much faster with no pins to remove every few inches. One can of 505 has basted one king sized quilt, two twin quilts, two tablerunners and there is still some left in the can. There are no fumes so I use it right in the kitchen. I tape the backing to the floor, layer the batting and the top. I peel back the top and spray the batting, then put them back together. This is the way that works best for me. Then I peel back the top and batting that are stuck together, spray the underside of the batting and adhere it to the back. Presto! A basted quilt! I untape the backing from the floor (which kept the back nice and taut) and it stays together very nicely.