Recently I've purchased some carded Antex TF Minibots. The first pair I got had decent enough cards, and have minimal waviness to them. The set I got yesterday had some major warping (but no creases or corner fraying), mostly above the figure. Is there an easy way to flatten them out? I've got some weight on them trying to straighten them. Will this work or at least help? My big issue with these is whether I should open them or not. Since they are vintage, I'd like to keep them carded just for nostalgia. Then gain, the more damaged carded ones make me want to open them. Neither point matters that much since I have multiple versions of Cliffjumper and Bumblebee loose and of varying conditions... just not these wacky colors.