I have a new Rec-Tec Stampede that so far has been top notch! Done some great beef jerky, ribs, tri-tip, chicken, etc. Pizza was my next move and I bought a nice pizza stone and peel for my pizza cooks. A question about temperature and wanted to see if anyone has a recommendation. When putting my pizza stone on the grates, the grill wont get hot enough. I want it at 500 degrees. I leveled out at about 420-425 and it went up only a degree or two every 10-15 minutes. I spoke to Rec-Tec and they indicated the stone may be preventing the grill from getting hot enough. Sure enough, I did a trial run last night with no stone, and I was able to get to 500 in less than an hour. Has anyone experienced this? How do you get around it? Thanks.