I was just watching a show and part of the hint section on thread breakage was to make sure that your thread is feeding off of the spool correctly. Using nets, spool holders, etc.... may be necessary depending on the thread choice, the spool design and that each machine can have its own little perks. They even used a banana holder (the thread cone sitting in the center of the baseand the thread comes up through the hook at the top)as a hint to help get the thread up high enough to feed better through the machine. Don't know if this will help but I thought I would pass it on.