I recently bought a used Char Broil brand propane smoker from a friend who decided that he wanted an electric smoker. The first time I used it I did a 3lb pork loin just to become familiar with the smoker and how it works. My BIL, who is an experience smoker had given me some tips so I was pretty confident. I mixed up a marinade and soaked the loin in the fridge overnight. I then removed it from the marinade and let it sit out at room temp for about 30-45 minutes to drain. My temps fluctuated a bit as I added wood chips and water throughout the process but I was OK with that. After about 3 hrs the internal temp was 171 so I took the loin out, put it on a cookie sheet and tented it with foil to let it rest. After about 20-25 minutes I began slicing the loin. It was beautiful, a nice light pink smoke ring inside, very juicy, I was excited! That is until I got half way down the loin, the opposite end was still very pink and under cooked so I finished it in the oven. My BIL and some other friends were discussing how one end cooked perfectly and the other end didn't and could not come up with a logical reason. Any thoughts or tips? Has anyone else had this issue? I plan on smoking a large meatloaf tomorrow for family but don't want it to end up the same way!!!