I recently bought a Silver B for the first time and absolutely love it. I do have a curious question for you old pros though: do you guys use the 2nd tier rack or the warming rack? If so, how and why? I've been skimming through some recipes and don't see many, if any, that call for the use of these. I've since removed my second tier rack to give me more room on the bottom grates. Just wondering if I'm missing out on something or not. Thanks!