It was the last pie of 4, the oven was on for an hour, the first pie was baked in 90 seconds after 25 minutes of heating, for the other two pies I turned the burners to low between bake time and turn flames to high after loading, the bake time was about 2 minutes, for the fourth pie I kept the flames on high between bake.
I ordered a 14" x 1/8 metal disc with shaft from machine shop to improve bottom stone heat distribution, and get consistent results. It will take about two weeks.
In my current setup top heat should be consistent, bottom heat may not, I would have to try it multiple time to confirm. I used 13" stone.
Also, I would like to test using 00 flour, I will order some this week
Pics of 90sec pie below