First of all get rid of the Pampered Chef stone. Sorry
to all you fans out there but you need to heat the stone to as hot as your oven will go. I have a generic PIZZA stone, not a baking stone, that I put in my oven and heat to 550 degrees. I stretch my dough thin, top it and put it in the oven on the HOT pizza stone. A plain cheese or garlic pizza cooks in 5 minutes. It has the crispest crust ever. A pizza with more toppings takes about 2 minutes longer. I have never had to bake a pizza for more than 7 minutes. The thing with Pampered Chef is that you can't get the oven hot enough and you are not supposed to preheat the stone.