So far, I have only used the black ball point. I'm one of those quilters who love them. I also like the fact that cold will bring the markings back. Last year, I made a quilt with embroidered blocks. I traced the design with the Frixion pen. Then I ironed sheer interfacing on the back. That, of course, made my design disappear; but a few minutes in the freezer and the design was back. I use Frixion pens on almost every quilt I make and have had no problem with them.