Northern MN
Thanks----You should add that to your profile, so people don't have to ask you for it all the time.
You got a lot of suggestions to try here, but I'll add that even though I had very little trouble with my AMNPS that I just burned it right inside my MES units, even I had trouble burning Cherry Pellets, no matter what.
So I burned mostly Hickory, and if I wanted to burn Cherry, I would use Cherry Sawdust, instead of Cherry Pellets.
Bear