I have got a 12 lb turkey (brined for one week in cure) that has been on smoke for 3.5 hours and I am getting thigh temp at 167* and 155 for the breast. My chamber temp has been hanging right at 250-255*. I thought this was way to fast and grab another therm, checked it for accuracy and placed it other breast, same temp by 1*. I was planning on pulling at 170* for thigh and 160* for breast. I am nervous that this just went way to fast. Help.