Smoking a 10lb butt of Brinkman trailmaster le. Royal oak lump, apple and pecan chunks. I am wondering specifically about stall Temps. I was reading a lot today and 165 to 170 for the start of stall. Today I hit 154 after 3 hours. It lost 4 degrees then took another 2-3 to get back to 154. My question is, why did it stall so early? Cooking Temps 225-240. Thanks so much!