I don't use the bastiing sprays any longer, just too messy for me, even hangin on the wall, I like to make bigger quilts, & it seems like they sag when I basted w/spray on the wall,. I use Sharon Shamblin's... Chamblin's...??? ( sp?) tutorial on you tube type in hand basting, you'll bump into it. no more kneeling on the floor for me!, I baste anything up to a queen size sitting down.