You have to essentially throw out the labeling issues, unless they are trying to claim what isn't true. To me the European testing and rating are what I look at. Snell is pretty much worthless and DOT rates mean little in my opinion. The danger I think is the novelty helmets and half helmets in particular that some of the cruiser guys wear they don't realize how dangerous they are. If not strapped snuggly the helmets rotate in a crash and can turn you into a quadriplegic... But I see too many cruiser riders and people on the 3 wheelers and slingshot style vehicles without a helmet, they are living on borrowed time, because accidents without a helmet often end in death, or the rest of their lifetime severely crippled.
Unfortunately my head is long oval in shape, so the Aria Signet X is the best helmet for my head shape. The only unfortunate part is the expense. Just priced a new Signet-X and 10mm V liner for the 2XL helmet and it would be $775 before taxes for the florescent yellow or about 20 less for a solid white at RevZilla, who has the lowest price. If I put another VAS flip up external shaded visor then add another $100 to that figure.
Rare to never to see the Signet helmets on sale...
Not working now, so that is a huge expense I'm going to have to save for in the next year or so...as my helmet is aging out.