I like your description of "0-10 with nothing in between". I totally know what you mean! I feel mostly calm all the time and then I'll get mad and just *boom*... usually screaming. Sometimes I pound my hands on the table or something, in frustration. My oldest son does the same thing- I said to his counselor he was "like a balloon, where he's just taking these little puffs of mad and saving them all up till he pops." He's also Aspgergers...
But I also know that many NTs have these same kinds of explosive anger. Therefore I can't tell if it's got anything to do with being and Aspie or if it's just a common (bad) way to handle anger.
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"Do not meddle in the affairs of dragons, for you are crunchy and good with ketchup."