Are you sure that it says 'machine quilting' on the reel? It is my understanding that the Gutterman quilting thread is for hand quilting only and will interfere with the tension discs on your machine by leaving a residue on them. Mettler quilting thread is OK to use in the machine but other brands put a coating on their quilting thread to make it easier to pull through the material by hand. If you are going to sew by machine it is better to use 40 or 50 weight cotton (of your favourite brand) that is not specified as quilting cotton. My preferences are King Tut. Aurifil. Mettler, Signature and plain Gutterman. Hope you have success with your project.