I'm glad those pics made a difference! Here's a plain cheese from tonight!
I'm working on a floor temp guide for Baking steel, Coralite baking stone and Cast-Iron working with the PD.
I will post IR readings for each. Depending on what rack you set the stone and the PD you get a different floor temp. This ranges between 650 degrees and 732 degrees. I will post the readings for each type of stone. There are three oven rack positions you can use. So you can adjust the settings to match your needs. I think this will help you find the sweet spot for your pizza. (Example) if your dough cooks best at 650 degrees and you use baking steel. Place on rack two at 500 degrees and preheat for 30 minutes.
The problem I see is the balance between floor temp and dome temp. The PD makes the dome temp match the floor temp. (Example) floor temp 650 Dome temp 550 not good! floor temp 650 dome temp 800 good!