My opinion if you are trying to control levels of smoke you can do it with temperature. The hotter the temperature the less smoke wood pellets produce, and not all pellets are the same. Simple science is most pellets contain very small amounts of lignin. Lignin is the big contributor in wood splits for smoke aroma & flavor. This is why smoke boost fluctuates between 180 - 200 degrees.
Now the other item is meat will stop absorbing smoke around 140 internal temperature. So when people discuss using smoke boost for a certain amount of time is really missing the point. Example: put on your brisket at an internal temperature of 65 degrees, put it in the smoker on smoke boost for two hours, and at that point the brisket is around 105 internal temperature, then you raise the smoker’s temperature to 250 degrees, the smoke level produced by the pellets decreases, and the next 35 degree window of the brisket absorbing smoke will absorb less.
It works both ways. If you want more smoke absorbed take the brisket straight out of the fridge (40 ish degrees) and put it on smoke boost until it reaches 140 internal temperature (100 degrees of smoke absorption). Less smoke flavor, put brisket on at room temperature and set the smoker’s temperature to 275 degrees. The pellets will produce less smoke at that temperature, and the brisket’s window of absorption will be less.
No matter what technique you chose for smoke absorption, use a water pan. All pellet smokers use a fan, and have the fire box right under the meat. The water pan serves at least three great benefits: catches drippings for easy clean up, adds needed moisture (which helps develop bark), and stabilizes the cook chamber temperature by acting as a heat sink (less fluctuating temperatures). It will also help the bottom of the meat by deflecting the heat, redistributing it around the meat.
So my techniques for long cooks: use second shelf for meat, water pan underneath, 180 - 200 degrees with the meat coming straight out of the fridge. Keep the smoker at that temperature until the meat reaches internal temperature of 140. Foil boat the meat, raise the smoker’s temperature to 285 (will most likely have to dump the rendered fat out of the foil boat, but the water pan can catch it), take the meat up to 195 internal temperature, re-wrap it in foil and place in a food warmer (150 degrees) for 12 - 16 hours.
If you don’t have a food warmer, take meat up to probe tender, and then re-wrap in foil, hold in a warmed cooler for at least 4 hours.
Lastly, try Smokin Pecan SHELL Pellets for long cooks. They have way more lignin in them than wood pellets, burn longer, and have a nice flavor.
If you are grilling use Royal Oak Charcoal Pellets.
Here is my guide:
450 - 600 degrees Royal Oak Charcoal Pellets
325 - 450 degrees Blend (Charcoal+Pecan)
180 - 325 degrees Smokin Pecan Shell Pellets
Cheers!