I sew thru the paper with a smaller stitch. One thing I am adamant about is trimming my seams to 1/4" after done sewing. Then I don't run into extra floppy fabric on the back that can get caught up in other seams. Never had a problem with bunching of fabric on the back using this method. Also, when I am ready to remove the paper, I mist the seam with water, let it soak in and then remove the paper. This way it doesn't pull on my seams and distort my block.