Hey guys I have 2 costco butts sittin in the fridge wrapped with rub and getting ready to smoke for tomorrow. I need assistance on what time to put these 8.5# each butts on the UDS. Id like them done between 3 and 6 pm. Ill also be smoking 2 racks of spares. Couple of questions 1. what time do the butts go on 2. will the spares affect the cooking time when i add them to the uds 3. Thanks for such an awesome site and all the help.