I don't even like my daughter to use my machine cause it NEVER is like I had it set. I was in a hurry one day to finish up some lab coats for a pharmacy and after doing miles of top stitching I saw the bobbin thread had been changed to a pale blue which my sorry eyes did not discern until I was almost finished. She learned about the wrath...... Pale blue may as well be brown on a sparkling white garment. Never again.