[I think 505 is the best, mostly because it has little to no odor. The Sullivan's works well but it has lots of overspray for me and it smells awful! It took me longer to clean the overspray then it did to baste the quilt! The June Tailor works if you are going to quilt in a day or two, but after that it started to lose it's tackiness. And the Aqua-Net also worked fine on small pieces that were quilted right away.]
That is my question, I love spray basting, but the last one I had was so strong smelling, my DH had a fit. He is a retired chemist and was all over that can, telling me how awful it was to use for health reasons, etc. I do have asthma, but cannot smell due to allergies, so I hadn't noticed the smell at all. I need to find one that he won't be able to smell. haha I have 3 seams to quilt on that quilt and then it will be ready for binding. I only pinned the outer border, no pins in the center at all and it did not shift.