The chunks still burned and had white ash on top and produced white smoke after about 30 to 45 minutes of blue smoke. I pulled those wood chunks out, added more lava rock and put more chunks in and they never got hot enough to even smoke. Back to the drawing board I guess...
How did your smoke ring turn out? There's only so much absorption the meat can take. If you were happy with the smoke flavor and the penetration, you may not need more than 30 to 45 min of thin blue smoke. Its all up to your preference though.
Today just reinforces my decision to go to a stickburner. Its so much easier.
By adding the third section to the smoker, plus the extra meat, I overloaded the capabilities and never could get my temp up to my satisfaction, even after removing the water pan. I decided the amount of meat and extra space was just too much for the charcoal pan to overcome. Fortunately, a few of the butts nearest the bottom were completely done, so I pulled those and moved the rest to the oven to finish. Next time, I'll most likely cook the butts at home and transport them to the place pre-cooked. Then I can use my big smoker, and wont have to deal with the fuel cost of pulling the trailer to the location.