smoking some ribs on my smoker. First I preheated the smoker for 1/2 hour. @ 225 planning 3-2-1 method. I then loaded smoker with pork ribs as quickly as possible. Ribs been sitting thawed and room temp for at least 2 hours, dry rubbed. I proceeded to light AMZNP in the mailbox. Got her nice and cherry and it is smoking away. It has been an hour and the smoker temp is barely at 198 degrees. I have it set at 240 which has been good to keep box temp around 225-230 on this particular smoker. I am using two separate temp probes.both in different areas in the smoker. Both probes are around the same . not near set temp,but has been climbing since the start but very slowly. My question is this, if the holes in the mailbox happened to be too big could this cause too much fresh air in smoker and cause temps to stay down.? I say this because when I was drilling holes in front of box ,I kinda messed one up so I had to drill it bigger than I wanted. but the AMZNP has never gone out. If this is the cause I can close them up a bit