I also have a Megaquilter and experienced problems with thread breakage and skipped stitches. For some reason, I happened to check the instructions for loading the bobbin. It is to be inserted with the thread movement being clockwise. For the past few years, I had always inserted the bobbin with the thread being counter-clockwise due to that was how it was done on a prior machine. After having that "DUH" moment, I've not encountered any more problems with breaks and skips......