Last night the primary dampers were open, the secondary (loading door) was closed, the stove was in direct draft, the MPD was wide open and the baro was closed. Also - yes, I did go into direct draft and open the dampers when I added coal - didn't help.
Hopefully later today I'll get improvement.
If Emery found it sluggish, stove coal should help. I've got the same problem - no stove coal. But when I want the stove to respond quickly and turn out a lot of heat, I sort out the larger pieces and use those. You could try that just as a one-fill experiment to see if it helps.
Some other things.
If the primary and MPD are open all the way, . . and the stove is in indirect draft, all night , that may be a big part of your problem. The stove will burn up the fuel quickly. And I'm just guessing here, but it likely will burn incompletely too ?????
After you get the coal well burning, try it with the primary partly open, secondary closed, stove in indirect draft
and MPD at about 45 degree angle. That should help slow down the stove to get the most heat out of the coal and allow it all to burn completely.
You may want to stick with the first rule of trouble-shooting - "Only make one change at a time and then run a test". That way, you'll know if what you change actually is making a change in stove performance, or not.