Hey guys, I've had my Large BGE for about 3months now. I love it, but when I do a pork butt, on a slow cook for 15 hrs or so, I set it at night before I go to bed and let it go all night. I check it a few times, but then come morning, the fire has usually gone out. Can you think of anything I could be doing wrong? The firebox is full of charcoal, burning nicely, the draft door is set about a 1/4 inch open, the daisy wheel just slightly open. Seems like anything under 300 degrees has been difficult to hold temp.. Thanks.