Howdy, I've got a '51 Epiphone in for some restoration. The pickguard was severely warped and I planned on making a new one. But out of curiosity, I decided to try and bend it into shape by wetting my granite block and heating it under a wet maple veneer with an iron. It got fairly hot and I clamped it to cool for around a couple of hours. It looks very good now, but I'm wondering how much memory the celluloid will have. Will it curl back up in a month?