I was out cutting some log pieces down to size over the weekend and it just wasn't cutting well. Lots of small dust for saw dust, not the normal shavings. I had to press on the saw to get it going. Once in a while it would seem to grab and go fine. But most of the time I had to force the saw. So I gave up pretty quickly. The wood all frozen solid - all 12 to 30 inch diameters stuff, mostly red oak, some hickory (I think). My two thoughts were either frozen wood doesn't cut well or the rackers are too high on the chain now that is has been sharpened several times. It is a "safety chain" so the depth gauge doesn't work for setting the pitch. Also, there is a lot of material to file off to trim the height. Chain is a Husky for Lowe's. Not sure of the size, but I am using the correct file with a guide for sharpening and the chain feels sharp to the touch. Any thoughts?