Sorry to bump this thread, but I didn't feel the need to start a new one. I took a second stab at the KP tonight and the results were already quite a bit better. For all those that offered their advice and experience, thanks again very much. And for those who originally replied in the thread asking for me to post my progress, I'll discuss what I did differently on the second run that gave better results.
First of all, making pizza tonight was the result of a spontaneous decision, so we did not have all the same ingredients we might normally use for this kind of pizza. The biggest difference was in the dough, which this time was a recipe from the Lodge CI pizza pan I bought years ago: Chef John Folse's Quick Dough. This is a high-yeast dough that can be ready in about 45 minutes start to finish. The dough also contains honey and olive oil, whereas before I was using a slow-fermented lean dough.
The equipment used was the same as shown here, but with a few minor alterations.
First, in an equally imptomptu fashion, I searched around an found an old cheapo cookie sheet and cut out a couple of small covers for the openings in the baking steel. I left the rims on one edge so that I could lift them with tongs or my welding gloves. The cookie sheet was very thin (cheap), so I put a box-end wrench on each one to hold it in place. Eventually, I will cut a set of steel covers with some small knobs or handles to lift them out of the way if I need to. Second equipment alteration: I did not use the char basket behind the pizza stone this time, though my KP is the version that comes with the tombstone and grate that holds the basket.
This is the procedure I followed, keeping in mind I have the benefit of a second kettle to serve as a holding place for some of these 22" diameter super-hot objects. I used the 22 OTS and the Performer, with all cooking grates put out of the way for this cook. I only needed the second grill because I am on a wooden deck without a lot of non-flammable resting places. If I was on concrete, this would be a non-issue.
I started by preheating the stone in my indoor oven at 500F while lighting the charcoal. I used Weber cubes to light 2 full chimneys of KBB at the same time on the charcoal grate of the 22 OTS. When time to dump the chimneys, I put one full chimney on the Performer charcoal grate while dumping the other into half a C shape along the back and one side of the kettle. I set the empty chimney down on my usual chimney resting place, then dumped the other full chimney to complete the C shape. Next, I put just the baking steel on the 22 OTS with all those hot coals and put the kettle lid on to preheat the steel. Meanwhile, the first of the pizzas was being made in the kitchen. When the baking steel was reading 500-600 with my IR thermometer, I took it off the OTS using welding gloves and moved it to the Perfomer while assembling the KP. Next, I put about 6 chunks of maple (chunks are all I had onhand) on the C shaped coals, placed the KP ring onto the kettle, and still using the welding gloves, moved the preheated pizza stone from the indoor oven to the KP. Next, I moved the baking steel to the top of the KP and covered the openings in the steel with the covers I made. Then capped it all off with the kettle lid. Last item of oven prep was using welding gloves and long tongs to add some more wood chunks to the back and sides of the fire, through the openings around the stone. I don't recommend using the charcoal basket behind the stone. You can easily push wood onto the coals if that basket isn't in the way. Now that this was all done, I had to wait for the wood to burn up a bit and for everything to heat up.
On my first attempt, the KP peaked at about 700F and didn't stay there very long. On this attempt, the KP's internal thermometer was easily pegged, and I was also maxing out my IR thermometer on the stone and the baking steel ceiling. When I was getting readings, they were mostly between 750F - 950F. The convection through the oven was truly wicked - using more fuel and covering the extra openings in the baking steel really helped. Actually, on this attempt, the best pie turned out to be the third and final one, after the heat had subsided a little bit, probably about 750F on the stone and ceiling. The temp was dropping a bit at this point, but if I had timed it differently, I could have made 2 pizzas when the oven was running prime - then added some more wood, waited for it to burn down, then made 2 more pizzas. Considering my first attempt fell a little short of what I was hoping for in terms of heat/duration, being able to overshoot that target on the second attempt made me very happy. The lessons I learned on this attempt were a little smaller this time, so I think when it's time for try #3, I'll really be starting to dial it in.
Second pizza
Third pizza