Kennesaw................................
I burn only wood, I keep my fire small,but HOT. That means a lot of checking the fire,not the food. The more you open the lid you lose heat,pressure,and moisture.
In using my pit(a Tejas 2040CC),I start a small (I should say compact),hot fire, leave my exhaust OPEN,controlling by the intake.This fire is appox. 4" above the intake level in the spot the fresh air is best for combustion of the heat source(wood).
I leave my cooking chamber SHUT, until estimated time is past.By opening the firebox door and not the chamber,you lose less heat.
By hot I mean that if you put a piece of your wood in on the embers,it will almost immediatly ignite.This gets you past the bad smoke, and will reduce the bad taste.A little(maybe 2min. ) white smoke will start and then turn blue.You will be watching the chamber temp. for the cue to add wood.Mine is usually every 30 to 45mins.(or a beer and cig. amount of time):becky:If the temp. rises,I close the intake, if it lowers , I add wood.I wait until it is 10* to 20* off then look in the FB and decide your next move. Have your wood the best size your pit likes to eat best . Mine likes sticks 6 to 10" long and aprox. 4"4", heated on the top of the FB.
I hope this helps you and if you still have trouble,PM me.You have a good pit and it will do what YOU tell it to do, it takes practice and patience.
Have fun and.........