Funny you should mention this. Just this last weekend, I was going to try and progress some of the cleanup around the house, so, after "PM"ing the chainsaw sharpener, I pulled the chain off the Stihl, and got it all tweaked up. Needless to say, I was pretty puzzled as to why it only produced fine dust and smoke when I tried cutting into the Maple trunk on the front lawn. I thought, since I had adjusted the grind a bit, that I had screwed something up, and ruined the teeth. However, of course, when I looked at it, I saw that *I* had put it on backwards! After a quick shot to the forehead with the Klown Hammer, I hiked up to the workshop, swapped the chain around, and, was quite pleased with the way it chewed through the thick maple, producing a nice spray of chips... Sigh. Measure twice, cut once. Dave Mundt