I have a Brinkmann Trailmaster Limited Edition that I am trying to work the kinks out on longer smokes. I have done many modifications including building a charcoal basket, placing steel plates in to act as tuning plates and a damper, and sealing all the gaps with high temp caulk. I typically start with a basket of charcoal, take a bunch of briquettes out of the center, light them in the chiminey and them dump them back in. I am able to maintain temperatures very well with this basket for about 3-4 hours but then my temps take a dive when the fuel gets low. My question is how do you go about refuelling? Is it as simple as being proactive and adding more charcoal along the way? I have had to embarrasingly finish up my pork butts and briskets in the oven due to not being able to get the temps back up after the initial basket dies out.