Superior Threads - So Fine, Rainbows, Bottom Line, my machine (APQS Millenium) does not like King Tut. I use Bottom Line for Stitch in the Ditch rather than monofilament. Fil-Tec's Glide is great if you want the shiny look, especially with their magnetic bobbins (Don't forget to take out check spring in your bobbin case). I find these threads do not produce as much lint as some others do.