I baste to the papers using one fairly large stitch on the sides, and stitch in each "corner". When I am finished whip stitching, I clip that one stitch from the front, and remove the papers from the back, which pulls the basting ends to the back, then leave the basting stitches. I like to do the one stitch per side. It seems to stablize the fabric, and the papers won't fall out. I have had that happen a few times, and it's not easy to put the papers back! I also try to use up old thread for basting.