With your MT Vernon AE, You have a lot less to worry about than a standard pellet stove owner. I burned the GreenWays and they did pretty well for me. So far the word has been good for them. You should be fine!
I purchased a ton from the same place and burned the stove to check them out. I have an Accentra and they burned fine. Check out my post to J=takeman about the same pellets. I plan on having them del 2 tons to the house. That was a long ride home with a ton in my van and trailer.
I was in the local Rural King store yesterday, they had Greenways for $3.49/bag. ($174.50/ton)
I asked if that was a sale or normal, and the “manager” (looked like he was 16) informed
me that was their everyday low price. I think I’ll go get a pickup load for evaluation.