Hi M. Yes, I do spray baste. I find it is wonderful for smaller projects but takes a bit of work with the larger king-sized quilts. I do find that my fabric, especially from the back, will shift on me if the piece is too large and I am hand quilting. I ususally spray baste and then add some pins to make sure nothing shifts when I'm machine quilting. For the larger hand quilted tops I put them off until assailed by guilt (or I need to get it finished for a deadline) and then I hand baste it.
~Tiffany