I took a quilting class that was taught by a well-known quilter who does all her quilting on a home sewing machine. She suggested a product called "Sewer's Aid" for nylon and metallic threads. While working on a memory quilt recently, I grew increasingly frustrated by the thread not feeding through discs well, breaking, etc. Finally ran a bead of QA down the spool and could not believe the immediate difference! I'm sold, and would definitely recommend it.