Thanks for all the replies everyone!
I know 400 degrees isnt over-firing, but the question I'm trying to figure out is, why does the fire take off mid-burn with ALL air controls shut down. Carlhernstein is suggesting that the my loading operation needs to be modified per his suggestions. I will try that for sure. However, one question I have for Warm Morning operators is when you shut down your air, does the stove still pull and occasionally increase temps?
There are obvious cracks in the various places where different stove plates come together, but these are not "worn" parts. The stove is basically brand new, in that, its never been fired. So the metal parts are not warped or anything like that. It should be performing as it was meant to straight from factory. Which leads me to believe that this is either operator error, or my draft is set too high.
In previous threads I've read that .04 is a normal draft setting, but on a Warm Morning operators manual that was scanned in from one of the users on this forum, someone had hand-written that the draft be set to .02 per "Rich on 11/14/84". Is this something that's critical to operation? If that's the case I need to figure out how to limit my draft more, but unfortunately I have maxed out my baro's adjustment, and can't get it any lower. I don't want to use an MPD unless absolutely necessary. What about using (2) baros? Has anyone ever heard, done, or seen someone using two?