I think the other reason why their base depth is so high is that not only do they blow snow but whenever it snows they add that to the base and after its gone they keep it in there. People to me the base isn't as deep as they claim it is.
Another thing and I don't mean to rag them, but everytime it snows and I mean everytime they claim to have more snow than me and my house is farther north than them. Lets say I get 5" at my house, bears website says they got 8"? I don't get that one especially when it is a northern storm and they got more snow than blue and camelback.