I don't think I have. I'm happy with the pizza base cooked on a steel plate. It doesn't have the black spots from a stone pizza oven but otherwise is much the same. I wonder if your daughter removes the flour/semolina that she probably uses to dust the dough ball prior to stretching? I drop the dough ball in a plate of semolina, cover both sides of the dough, then on a flat surface, push out to the edges. Then I lift it and rotate it suspended over the backs of my hands to stretch it. While doing this, most of the 'dusting' flour falls off. I cook for about 2.5 mins, then switch the setting from oven to grill for a further 2 mins. I'm trying 70% hydration these days but it makes for a fragile dough!
The base is cooked and fairly crisp, but not at all liked the browned raised edges.