I was told by several sewing machine repair people and dealers not to use Sewer's Aid on thread in electronic/computerized machines.
Originally Posted by
leatheflea
Try an 18 needle, I know sounds awfully big but that's what works for me. You might also try a product called Sewer's Aid. Its very inexpensive, I purchased mine online for under $3. You add a drop or two to your thread spool, let it soak in for a few minutes and like magic it helps with shredding.
Good Luck