Has anyone else noticed that oregons quality seems to be going down hill. For the first time ever I blew a SN on a new powermatch bar. When I took it off I noticed that the rails where fairly worn for how much time was on it. I have never had this problem beofre. In fact I had one PM bar i ran on three differant saws and it was still in good shape.BTW I never abused the tip, dont plunge cut, and never run the chain too tight.