The question is who is harder on a chainsaw in 1 day... a pro timber feller...a firewood hack.... or a guy that does milling? I know that a pro feller uses them hard every day compared to a firewood hack or miller, but a firewood hack makes many many cuts with his saw while collecting firewood. We all know how hard milling is on chainsaws. Question is, in a single day of use who is harder on the saw?