This is interesting. I guess we will each have to do a test sample on the specific fabrics we will be using in each quilt before we do any marking on them. I have spent a small fortune on pens and various pouncing powders lately in hope that I could use stencils with my LA. My eyes are aging significantly and I can no longer see any of the marks I'm making, no matter what I use. I'll look on Walmart.com and see if I can find the pens. Thanks for the info.!
Rose L