RedMax Trimmer 2600 Two years old and the spiral spring broke that retracts the rope back into the housing. Is this a common problem with the RedMax? I have a hundred year old stihl and never had this happen. It's Saturday so that means I'll have to wait until Monday to call the RedMax dealer. Then wait forever on that part to be shipped to me. Are these universal? Or do I have to get a RedMax spiral spring? Thanks!