If you decide to use a different marking tool, I like the Clover one that marks a thin white line and irons off. Another nice one I use, but not it cannot draw as intricate a line is a waxy type of crayon that is made with iron off pounce - it sharpens with a crayon sharpener if needed (but wastes that portion) - it marks very nicely too, just a little thicker line and irons off.