Stihl 084 VS 090 for milling? I'd like to setup for milling in the most affordable possible manner. So on the lookout for an older large CC saw to use with alaskan mill. not in hurry to setup. if the right deal comes along, then I'll jump on it. so what stihl saw would be best? picking stihl due to support for older saws. Stihl 084 or 090?