What would the flavor of the "bark" be described as when refering to a pork butt. The few times I've had smoked "butt" or attempted to smoke it myself, the flavor was sort of a bitter, burned, charcoal taste. Is this correct? If not what could the problem be? The heat never got above 270, so I don't think it was burned. I don't know... Maybe too much smoke? Or, is this how smoked meat bark tastes?