I have a #2 and typically see temp swings of +/-15 degrees or so from the setting, so when I set for 225, I am not surprised to see Maverick readings from 210 to 240. No worries, though, it tends to average out in the long run.
Like UW, I see heavy some after about 15 minutes and 180F or so. I normally reach the desired temp (like 225) within 30-40 minutes, although it can take longer with large loads. For some reason, after about 30 minutes in, the smoke will belch a few times (don't know any other way to put it), and then the smoke returns to a steady smoke until fading out to the thin blue smoke (usually within the first hour).
Hopes this helps...welcome aboard!