I have been lucky with my Austin LX, other than 1 rack that cracked the temps have been really good, a small swing either way but nothing in left field. I really can't say I have done anything to keep it that way, most of the time the lid gauge is reading the set temp once it is warmed up. wanted to upgrade to a pid but would be a waste of $$, I am glad PB refused to answer my ? about the controller they sell to upgrade for it, I sent them a message to see if it was in 5 degree increments , never no response and after 2 weeks it was removed. my control jumps from 250-300 and I wanted to be able to run in the 275 area, pretty simple but their lack of response reflects badly with me, if I ever buy another pellet smoker it will not be a PB. going to run it till it wont run no more, I have lost track of its age but think over 5-6 years old.