Hi all! Dave here from San Diego, nice to meet everyone! Brand new to smoking, and just firing up my "new" 30" MES for a 4# brisket. By "new" I mean that I bought it refurbished...remains to be seen whether that was a good idea. In any case, following directions seen on here, I am working with a temp of 235. Problem is, the smoker tends to drop about 10 degrees below before firing back up, and then gets about 10 degrees too hot before it reaches it "peak" and starts dropping back down...so instead of a 235 constant, it keeps rising and falling in the range of 220-250ish. Just want to make sure this is normal and that as long as the average is close to 235 I'm good to go, or whether this is a serious fault with the machine. Thanks and look forward to seeing how the first one ends up, will share once I pull it from the smoker!