I'm making a quilt throw for my dad and I used spray basting and althought I was very careful to get the backing stretched out good when I sprayed and sandwiched it, when I was doing my quilting, the backing started to pucker in places. I just went on and quilted it, too frustrated to seam rip it and try to get it unpuckered. I used a walking foot and quilting gloves and thought I did all I could to keep that from happening.. What did I miss? Should I not use the spray basting? :cry: