I have used the press'n-seal before with mixed reviews. Loved the ease of use and transparency. I marked the pattern with a permanent marker (may have also used ball point pen one time). But when I went to remove it it was a problem to get it out of the tiny places between loops, petals, etc. Add to that the darkness of the marker which stayed under some of the stitches and it was a mess!! It would be interesting to use the frixion pens to see what happens. That way, pressing to melt the plastic wrap would be more possible. Not a good idea w/permanent marker. Have also tried the tissue paper and some of those bits may be with the quilt for a while. I am trying to get better control of the FMQ but sometimes I get some really tiny stitches if I don't move the fabric/adjust speed as I should and this adds to the conundrum.