I just bought the Mischief growth chart for boys for my DGS. They used the ultra firm Peltex in it to make it stiff. I saw somewhere on line where they just used Warm and Natural. My concern is just the batting might not be stiff enough and if I use the Peltex, when it either gets stuffed in a suitcase or a shipping box will that crease or curl it so it won't hang straight again? I've only used Peltex in purses or bowls so i'm not sure how it would react being folded or rolled. Any info would be greatly appreciated. Thanks.