I have depended on this board to "find" the best marking system and the only one that a majority like is the chacoliner chalk roller. I've yet to try it - haven't had to mark in a while, but I will soon and it's a mixed light/dark quilt so I plan to buy two different color markers. I did use kid's washable markers (at first, and even now) I find I'm most comfortable with thick lines. I've heard yellow doesn't come out and no colors come out if ironed. I used tons of Shout. But I'm ready to move on.