Hi Tom, that is not a bad suggestion, however I do not have time for further development on this project, only ongoing support and bug fixes if any are found.
Several years ago when Torro decided to produce the TCB they asked me to create an effect where the smoker "sputters" on startup, and this was implemented (and is still active). It occupies about the first 2 seconds after startup, and the basic idea is something similar to what you propose, but the way it works is that the smoker speed is alternated between max and off for brief intervals, to create "sputtering" or "puffing." It is not terribly effective, because most of the available hobby smoker designs are not reactive enough to make short, abrupt changes in speed very evident.
At any rate, there are no doubt all kinds of various smoker embellishments that could be experimented with, but I am going to leave those for others to work on if they have the desire and ability.