Believe it or not but my Innova seems not to like Aurifil threads They just keep breaking so now I'll use it in the bobbin and for piecing. Connecting Thread's cotton and polyester threads seems to be the favorite with my quilt machine so that's what she gets. I've also used BFC polyester metallic threads on my quilt machine. It works better on the quilt machine than it seems to work on my Viking Epic, GO FIGURE!!!!!