I just covered my big board with duct cloth and I love it. when it gets to brown or scorched I just put on another. I have two pieces on now but when I need to replace I will take off the one that is on now. I don't want it to be to soft. After I stretch and staple I turn it over on the right side and spritz with water and it shrinks up nice and tight. Learned that trick from a guild member/