Have you used the Specialty Bobbin Case? Wind the bobbin slowly or by hand depending on decorative thread thickness or yarn and adjust the tension of the bobbin case with a screwdriver. Remove the standard bobbin case and replace with the Specialty Bobbin Case; insert bobbin wound with specialty thread. Turn the fabric right side down and sew the desired length of stitches. Tips & Hints: The tension on the bobbin case can be bypassed completely if it is still too large to go into the bobbin tens