I am close to finishing my BGE table using the plans from the naked whiz site. I am having a difficult time deciding to use a paver stone or a tile on the bottom shelf. My concerns are due to heat and cracking. Can someone from experience speak about which route would be better and safer. I plan on using feet on the egg as well. I'm guessing this will help with heat as well. This may be a basic question but I am a newbie. I actually don't have the egg yet. I am going to purchase once I finish this hopefully in a few days.