I have a Brother 2500D and it isn't picky at all about what it sews. I like the look of rayon best, but when I realized that I was needing about 100 different colors and then every time I picked out a new design I still didn't have exactly the color that I wanted, I started getting mine from a dealer in the UK who is selling thread made in Pakistan. When I have purchased every color the dealer carries I don't know who I will buy from next, but I can't afford the prices of many of the brands in our stores with the number of colors I want. I can't tell when my designs are finished which colors are from Pakistan and which colors I paid $8 a spool for.