I got my first auger jam last week with firemaker pellets. I cleaned the stove and it still came back. I thought it was the stove, but I ran out to walmart at 10 pm and picked up pennington pellet and they worked. I burned a couple of bags of firemaker earlier in the season and they seemed fine. I don't see alot of large pellets but when I cleaned the stove there was a lot of pellet dust around the auger. I got a ton of these pellets mid January. I was hoping the auger jam was temporary problem with these pellets but it jammed again last night. For now I am picking up other brands to mix with these pellets. I will probably need to shift the pellets until they are gone. Atleast I was surprised my local supermarket had cleanfire pellets for sale. I was able to get pellets at 6 am on a Sunday. Another bonous is I can try Cleanfire pellets, before ordering from woodpellets.com