I use a variety of thread but it is all labeled hand quilting thread. I use Coats & Clark; Guterman; Americana; and probably some others that I can't recall the name. Whatever I find in the color I want is what I use. I do, however, use Roxanne needles and rarely have issues with thread shredding. I also use Thread Heaven thread conditioner and I believe it also makes a difference. Unfortunately, like most quilting issues, it's trial and error finding what works for YOU!