Matt, you mention the cookware. I have a lot of it, too, that started with the Electromatic skillet and 4.5 qt. Dutch Oven. I like the evenness of cooking and managed to buy several  of the later offered Table Ranges.  My brother of blessed memory used to house/dog sit for friends who had a Corning range. He was no cook, but they had some of the Teflon lined cast aluminum made for the cook top and he loved using it to make chili. I remember some square aluminum pans made by Nordic Ware (the Bundt Pan People) that we sold briefly in the housewares section of our store. The pans had a white exterior, white Teflon and came with the square, new style lids for the "A" design pyroceram pans, but they were the smaller sizes of saucepans, 1, 1.5 and 2 quart and they used the Corning lock on handle. I never saw the larger pans that my brother talked about and was wondering if you, as a Corning Range owner were familiar with them. I can tell you that the white Teflon II did not stick to the the 3 aluminum pans that I had.  Nordic Aluminum offered a lot of pieces of cookware, some specialty ethnic pieces like Ebleskiver pans and corn stick pans, popover pans, Platte Panna and Sandbakkelse Set as well many varied bake and salad molds . They also offered some beautifully styled saute pans with either Teflon or stainless steel  interiors.  They are still based in Minneapolis and many of their pieces are still made in the USA.

Best of luck finding your cooktop.

The evenness of the heating in the Corning Smooth Tops was due to the special construction of the heating elements with the thermostatic control and the cooktop being made of the same material as the cookware so they heat at the same rate, equal coefficient of heating or something. Pyroceram does not spread heat sideways very well so the mesh construction of the heating element under the cookware was a great solution. I do remember customers with the original cooktops, not the 3+1 later design, coming in looking to buy hotplates to use under their canners which was not a workable solution.