My $0.02 - I have a bit over half a ton of FU's (love writing that
) from a batch I got as shoulder pellets from HD last spring. They vary some from bag to bag, some a lot of fines, some hardly any, almost all pretty dusty, neither of which I'm crazy about. They're hot enough, for sure - pretty high softwood content I'd say from the smell. They are also real short and feed fast because of that. My burn pot can clinker from them if they over feed, but I can set the fuel trim back and get them to burn well - the flame characteristics are good. They also work well mixed with a modest hardwood or blend which, if longer pellets, also slows the feed down and keeps them from jumping out of the pot too much. Overall, the btus seem high enough (better than a lot of the midrange shoulders I've tried) that I'm not sorry I bought them - can work with them and decent for the money (they were cheap!)