I bought the Grid-8SA at a wholesale club and it looks the same as the G-4 that they advertise, but I cannot find the Grid-8SA model on the Cuisinart website. Does anyone know if there is a difference? The Grid-8SA is called the "Griddle Gourmet" while the G-4 is just the "Griddler". Thanks for any help. The plates can be removed in both, they both have a grill surface and a flat griddle surface that can be removed and put in dishwasher. That is not the difference.