Ugg, finally got a nice accurate tackle twill vest. I lightly pencil marked where the armor will go, in order to sew on my velcro. Now I can not get the pencil marks off. My old cottn vest, you could just use an eraser, but apparently this does not work with tackle twill material. I have try all sorts of erasers that I have around the house, but they barely touch the marks. So, I am calling on my Fett brothers (and sisters) for help. Anyone have a remedy?