http://www.buyconceal.com/info.html Has anyone tried this product? I've got pretty deep and ugly scratches in my AlBook 15"'s wrist rests and I want to get rid of them, but I've read bad reviews about TiPaint (yellowing, chipping worse than the original paint...) and this is from the same folks. FYI: If I get this, I'll use it, let it dry, then cover the wrist rests with invisibleshields. Has anyone used this? Is it worth a try?