I only reload one or two pieces at a time, once it is up to running temps. I just dont feel safe loading it to the gills. Its more trouble to load so often, but I can control the fire and burn rate with my damper. I get one hour burns, but low wood useage. I just try to keep it between 300-500 F. I never burn overnight, Im not comfortable enough for that. How often, and how much do you reload? And I have no luck with the top down method. I can have a fire built and running 400 F in less time than it takes to stack up all the wood, ect. To each their own tho, cause Ive heard great stuff about it. Just not my thing.