I was making Spin's eggcelent pizza recipe for the first time today. I couldn't follow it exactly because I didn't have the right fire bricks. I used a 12" hexagonal 1.5" thick brick on my Large egg. Then, I added a grill rack that added a few inches of height, then I placed my large 16" pizza stone I just bought. I thought I had stabilized the temp when I first came out and it was 575, then I closed down the lower door, and sank it back to 550. I put the pizza on, then came out a few minutes later and it was up well in the 600's. I closed things down, but the temp didn't dive fast enough, so I waffled the lid, and got a peek at red hot coals. I noticed smoke (not good when you're going for no-smoking on this recipe), and it was the felt ring burning. Luckily, it didn't really destroy the meal, though it is 1/2 destroyed on the inside. It definitely needs replacement. So my questions are 1) what is entailed with the replacement (buy mail order? how replaced? reglue? what kind of glue? how scrape off old? And 2) how did I burn it? My guess is that it was because my pizza stone was a good inch or two above the ring, not just slightly above it. This would have allowed the extra 2" diameter that the pizza stone hung over the roundish brick to reflect heat (which got to 650) back down onto the felt. Sound logical?