Hey guys. Last weekend I tried to smoke 4 chicken breasts. It was an epic failure. I smoked them for about 4 (+/-) hours at 250 with mesquite logs. The temp briefly went up and down a few times due to this being my first time but i feel i did a pretty good job of keeping it at 250. The instructions i was following said to pull them off with an internal temp of 160. I could not get these damn things above 130. It was getting late and i needed to pull them off so i shredded them up and cooked them in a pan. They were really tough though. They didn't feel like i thought they would after 4+ hours of cooking. What the hell did i do wrong? Why couldn't I get that internal temp up?