Cutting wood with a dull chain is really the pits. Watch the chips coming out of the saw. When you are done with a cut, glance at the pile od chips left behind, they should be a nice crisp wood chip. When they get small, and look like sawdust - stop cutting wood and take a couple of minutes to sharpen your blade. It isn't hard if you have the right tool. We always had a chain sharpener for each saw we took into the woods with us. Just a rat-tail in a guide, but it makes a world of difference. Anyone use a log jack when cutting firewood? DH had to have one, used it one season, and now it just sits in the garage. He said it worked good, just never bothered to take it with when cutting wood. I think it is because the wood we were getting had been dragged out of the woods into the field, so it was dirty. Lifting the log out of the dirt, wasn't mush help at that point. The year we used it, we were getting our wood from the mountains and cutting down the trees our self, and chiunking it right where it fell.