You can most definitely spray baste all three layers of a quilt of any size without any pins, and it is just wonderful. Very time saving. For those of you who find 505 expensive, my bet is that you are using more than you need. one can will do a queen and several small quilts, or possibly 2 queens. Control "overspray" by spraying from the edges toward the middle and walk very quickly around your quilt.
My blog has a photo explanation and if you need any help, please post on the blog directly (or here) and I'll do my best to help you out.
http://quiltersparadisecafe.blogspot...-how-do-i.html
Have a wonderful Thanksgiving all....
Lisa
www.quiltersparadiseonline.com