Of course this whole article is moot. I would not use a non-stick oil free grill to cook anything. Stuff either goes under the grill and drips its fat out naturally or (preferably) it goes in a pan and is fried to high heaven. The George Foreman grill is a mixture of a non-stick frying pan with a mangel, squeezing out ever last bit of fat into a convenient drip tray leaving you with dry, stringy steaks which have no flavour.
Somehow I assume the Carl Lewis grill to be even worse.