Yes, I've used polyester embroidery thread (Isacord, Maderia) for satin stitching with good results. I've even used it on the LA with little problems. If it's made for embroidery machines which stitch really fast, you should be able to use it on your DSM. That said, I never liked the rayon threads either on my embroidery machine or my DSM - it breaks too easily. You may have to play with the tension on your machine to get it to look nice, though.