Hey Libo, sorry for the lateness, here are my settings on the Auber WS-1503CPH that I use with the #3. P=70, I=600, D=150. It worked flawless on the ribs, never seen it over 235 until it hit the last step and went to 245 for 30 min. Was going to add sauce and let set in the smoker for 30 min. but changed my mind. Ribs were done at 4.5 hrs.