I spray baste all of my quilts. We're talking about 200 of them. Never had any problems. My favorite basting spray is the 505 spray. You can occasionally get it 50% off at JoAnns.com, when I see it I buy a dozen cans.
__________________
My newest Grandson, Caleb Austin, was born May 29th. I am now Grandma to 4 precious babies. I am so blessed!!!!