I have used both Gutterman 50/3 cotton, Prescencia 60/3 cotton, and Superior cotton and polyester threads with my Bernina 440 QE and never had any problems with any of them. The Metter Silk thread that I buy is not actually wrapped with silk, it is 100% cotton; it is the finish of the thread that gives it the "silk" feel. I use it for hand and machine applique
Originally Posted by
ManiacQuilter2
I was told by my Bernina dealership to only use Mettler silk wrapped thread. There just might be some threads that don't work well on Janome.