Good morning, I should be able to finish up my first UDS by this weekend. Keep in mind that this will be my first time ever to use charcoal rather than gas or electric. Can someone give me the basic idea of how you manage the temperature. I get that opening the valves will allow for more air and hotter temperatures; and that restricting air flow will do the opposite. What about the lid exhaust pipes? Do you always run these wide open? Or do you ever close any or all of them during the smoking process? Would this choke out the fire or just hold in more moisture and smoke? Sorry, I know it's a loaded question. Thanks in advance for your input.