From Sue Galanto: Thank you for your review! Just to clarify: Youre correct, the new grids are powdercoated vs. vinyl coated.Theyre stronger because theres more metal than coating to keep the grid/bar thickness the same. Vinyl coating requires several thick coats and can peel. Powder coating is applied electrostatically and heat cured. So we had the metal made thicker in order to keep the same gauge of the grid. Glad the new grids are working nicely, and I hope Bella found something more appetizing to chew! :)