Hi Ellie.....I spray baste all the time and in fact, did it yesterday.....
I spread an old sheet (designated for this)on my table making sure to cover all the side items....like the ironing board . Then I fold back half the quilt from the batting and spray the quilt....lightly.....of course, I've done this with the batting and backing first. I only use 505 by Sulky. It is easily repositionable and I don't find the fumes objectionable. Hope this helps. I do, at times, pin the corners, but not often. I LOVE spray basting......the only way to go and on a table is the only way for me, too......old knees don't do floors anymore...LOL!