I had a 920 that I used mostly for milling. My best "guesstimate" is that it milled around 5000 bd ft of hardwood (white oak, sugar maple, honey locust, & black walnut). Many of these cuts were 20-30in wide. I used a 34in Total Super bar with ripping chain. The saw, itself, performed very well, but the going was not fast. Milling cuts make a lot of dust, & the filtration is a problem. Often I had to stop once or twice during a heavy cut (24 or more in. wide & 8ft long) to clean the filter because the saw would start to run rich. I also made many much less demanding milling type cuts on walnut, black cherry, sugar maple, & apple rounds that I was slabbing into bowl turning blanks. These were done with a 24in Total Super bar & ripping chain. The saw was not underpowered for this work, but, as stated above, it was not fast. Hope this is helpful.