Seems like my stove burns better (hotter) and more evenly in the front. Starting from scratch, the entire fire box seems even. Once I start tending..... shake & load, is when things seem to change up. Done my best with keeping the draft coming from underneath, added an extra spin knob, plugged up the front & back to stop over-fire. With a suggestion I got from "Lightning" regarding the shaker handle, my shaking is much improved and has cutway down on clinkers. When I do experience clinkers, it is more in the back, if anywhere. My thought is that the firebox is long and rectangular .....front to back, and the draft vents are in front....so the front coals are hogging all the air?