Made some pies on my Bubba Keg grill tonight. This is a big green egg style of grill/smoker. Preheats the stone to 550° for about 1 hour. Used the same % from the recipe that Pete did for me earlier in this thread to make (3) 9" pizzas. 1 for the kids to split, 1 for the wife, and 1 for me. The temp started to drop after the first one due to me opening the lid to add/remove pies and take pictures. Next time I'll start at 600° to help with the temp. All pies came out great. My 4 year old daughter said these were the best pizzas I've made yet.
Here are some pics.