Tammi, I have just finished re-reading this thread. Everything you've pointed out has been "right on"! I've watched my son (a former SM Mechanic) take machines apart because "it's not stitching right, the thread is breaking, etc., etc." The biggest offender he would find is "LINT", "LINT" and more "LINT". Cleaning up the bobbin case, as well as the rest of the machine, is critical. I've enjoyed reading this thread and I'll be checking out some more of your articles! Thank you.
Jeanette