Q: Why was I unable to make the invisible thread work on my Viking mega quilter as a top thread? Even though I loosened the top thread tension a great deal, it still broke.
A: The Viking Mega Quilter is a home machine attached to a frame system. These machines unwind spools over the end of the spool since the spool is positioned on a vertical pin. This does not work well with sensitive threads, as the motion of the thread coming off the top adds rotation and twist to the thread. MonoPoly (and other spools) should unwind straight from the side of the spool, with the spool rotating. Position the spool so the thread does not unwind over the end (top) of the spool.