I launched with a wood and retrieved with a metal one...not because I knew I should but strictly out of luck!
I went to a couple of places to see if I could buy some Semonila (sp??) as I think that is what I should be using underneath correct but I couldn't find any. I have since bought a small bag.
This pie took about 12 minutes. I preheated oven to 550 for 120 minutes, left door closed the entire time. I did check stone right before I launched and stone was roughly 540

. At around 8 minutes I put broiler on for 2 then back to 550 for 2 minutes. This was from reading other posts. Just trying to out things together and experiment.
There is an appliance place next door to where I work out, I've been in there a couple times to buy replacement elements. I'm going to ask the guy if there is anything I can do to get oven temp up. It's worth a shot.