Question 1 Fire control

Question

     I have a Char Broil H2o Deluxe charcoal smoker (i.e. a bullet smoker.  I seem to be getting the hang of getting the temperature right.  I fill the  fire pan completely full with charcoal and start it with an electric starter, add lit charcoal (via a chimney) as needed.  It seems to work fine.  However, I notice that when I empty the ashes, I retrieve a lot of unburnt charcoal from the ashes.  Seems to get smothered by the ash.  My question is whether I: 1.  Should stir up the charcoal from time to time during cooking. Problem as I see it is that it is hard to do as the smoker is set up. 2.  Start with less fuel . 3.  Leave well enough alone. TIA David