I bought Superior's other 100wt thread first and used it on SITD only. It worked fine for me. Then someone mentioned the MicroQuilter thread was even better so bought that but have yet to try it. Think they liked it better as its not as shiny as the other thread which I wanted. Hopefully this year I'll be back to quilting as just recoveriing from rotor cuff surgery and still have a couple months of therapy to go thru yet.