I've recently learned a new way to spray baste & so far it's working well for me. Pin (or tape) single sheets of newspaper all over your design wall, pin the quilt back over the newspapers, smooth backing with your hand moving easily across the fabric, spray, place batting over backing & smooth, smooth, smooth until all is straight, then lightly spray batting & place top over it & smooth, smooth, smooth. I leave it hanging on the wall for a while before I start to FMQ, it seems to leave less residue when it's a bit drier.