I just used my new Rec Tec grill this weekend and was having very look cook times. Following a lot of advise on several websites, I cooked baby back ribs on Saturday at 225°F which took 5.5 hrs. The issue is they where still tough and did not cook long enough. Then on Saturday night I put in a 9.5 lb pork butt at the same temp. I smoked it for 17 hours and finally had to raise the temp to 240°F for another 1.5 hrs to get it up to 203°F. The end product was moist and tender. My question is, is this normal or is it possible, my controller is not calibrated to the correct temp?