do not write well on ANY paper or styles of paper. A total waste of my money and was extremely disappointed and if it didnt cost so much to mail back I would have that is how dissappointed I was.
I have used Signo seems like forever because it was the only white ink pen that actually worked and showed up on dark cardstock. Well, the Inkssentials pen works just as good! The ink writes just as smooth and you get a solid white ink that shows up on dark cardstock.
I was looking for a pen that would show up on dark card stock. This pen will do that fairly well, unless the card stock is textured. Even when just making dots around the edge I had trouble with the ink not flowing on the textured. I suggest you stick to smooth surfaces.