After struggling to remove all the plastic Press n Seal from under the stitches of my free motion projects, I'm giving it up.
I'm back to using Golden Threads paper. I mark the paper with a thin chalk pencil, then pin it to my quilt. The paper gets perforated as I stitch, and mostly falls away. The chalk easily brushes off the fabric, unlike the ink I used on the press and seal that sometimes got driven into the fabric and thread as I stitched.
Press n Seal was a good effort, but just doesn't work for me.