Not sure how to correctly word the following so please forgive me if I do not use the right terminology. Today I smoke chicken quarters for the first time and notice that the skin pulled away from the meat. In preparing the chicken for smoking I brined it overnight then rinsed and dried it prior to putting on the smoker. I smoked them at 250 until my internal temp was 165. What would cause the skin to pull away from the meat or is that normal?