As a consumer, I really like your design. I think it is much more attractive than the 2 stone that keeps getting mentioned. In your reply made earlier to my post, you defined your market a little better. It is for the average backyard griller who wants to make a good pizza at home. If it can get up to the temps I've seen during my quick read of the thread, you can make pizza. I think a diffuser above the intense charcoal heat below is all it needs to stop burning your crust. Then, you need a one size fits all or almost all grills that can sell for less than the average backyard gas grill. If you are able to get it manufactured, I think you can sell them online. I think your biggest competition will not come from a small competitor like 2stone, but someone like Brinkman or Char-Broil or Weber. Those guys can come up with their own version that does not violate any patent and sell them in big box stores. BTW, if you are selling these online, you'll have to keep an eye on the weight.