PFI info is the "minimum standard" for grading. All Premium pellets have to meet the same standard for <1% ash, etc. Some pellets are even better than that based on their source material. Sometimes that changes lot to lot so you generally won't see a lot of other numbers bandied about. You can check each manufacturer's website to see if they make any additional claims of their own. The Barefoot ones I have in the garage say they "exceed standards" but not specifically how much. The same is true of the Michigan Wood Pellets I've got - again they say they're better but the specs they list on their website are the standards although they do claim to pre-sift the pellets before bagging to reduce the dust. Both of them are hardwood but that's because that's what the dealers here sell. I'd be just as happy with softwood (maybe happier) as there's slightly more BTUs in a pound of softwood pellets than a pound of hardwood pellets and since I've got a thermostatically controlled stove, the more rapid burning of the softwood ones wouldn't bother me. Personally, I would be interested in industrial (standard grade) pellets if I could get them and the price was right - my stove can burn them so if they were cheaper enough, they'd be worth using. Just can't find them locally.