First shot at pizza on the mini

I thought I put in a nice load of charcoal but at 500 degrees it burns off pretty fast but lasted this cook. Took about 20 minutes to get to 500 with clean smoke i then had to control the temp because it wanted to rise. After the initial pizza i was getting to 500 but it took time and wide open vents with the opening and closing.
This is my first time using double zero flour and I must say it makes a difference. Less sticky and much more smooth from peel to stone. 2 cups of flour yielded 4 pizzas at 4 oz of dough a piece.Setup was 2 stones that cost $9.99 at cost plus, 3 terracotta feet in between stones. I didnt brush the crust with oil, it would have looked better also with this crust the thinner ones came out much better.

I didn wait more than 30 minutes after the stones were in for preheat, i dont think it made much difference. Pizzas were on 8 - 10 minutes as I struggled to keep the temp in the 500 range after a while. Also, the inner part of my gasket is black is that a burned gasket? Seems to be working fine, it was charred at my last cook of 400 so if it is I doubt a warm up period of cooks at 350 would make a drastic difference.