If you decide to make the teflon shoe make sure you measure the sides on your iron before you cut. You have to trace the bottom of your iron but you might not think of checking the sides. I had to extend the side pieces quite a bit to fit my iron. I also fastened mine with a bit of elastic rather than string which simplifies taking it off and on. I like using it. I have also just completed a huge raw edge appliqué project so its had lots of use. I used lots of starch and liquid stitch (diluted a bit like Grace Erra (sp?) does). It was a charm. Between the starch and liquid stitch I needed no stabilizer. I did a machine blanket stitch. Worked fine. The iron shoe was great.
If you scroll down on the page where you watch Sharon Schamber's show there is a link. I have trouble copying links but I tried copying it for you. That's it but it doesn't look like a link you can use. You can try to copy and paste it. I made one. It works great.