I personally think the originator of this thread is not having a " cheap" thread problem, but a machine settings problem...tensions, needle size or set in incorrectly or even a timing problem...or perhaps the thread from the bobbin is not " pathed" right.....have had Singers, Vikings, then bought a Babylock...in a class wondered why the stitches were such a mess....bobbin thread was not set in right! In other machines I just snapped in bobbin and away I go.....something that simple made such a mess, but a lesson learned....