I don't know much about the buzzsaw, but I have both the inferno and classic. The Classic i got to take the place of my inferno. It does the job well, but isn't the same by any means. I think the core of the classic is so versatile that you can make it very different from the inferno. Based on my drillings, my inferno was a bit smoother on the backend, that is the main difference. The Classic is more of a hook stop reaction, in that after it hit the turn it gets into that hard roll almost immediately. But the classic is so versatile for me that if i get around it with more tilt, it will be "rollier" than my inferno. I love having such versatility. I'm sure N_Smith will be able to help you out more, but if any more questions that i might be able to answer feel free to ask.
Mike
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University of Central Florida + Brunswick = Collegiate Domination