Although you can run just one thread with the The Thread Director 2, it is also perfect for art quilters who want to thread paint by blending their own colors. Surface design using two threads at the same time is a breeze and embroiders can have quicker color changes. You can even make your own fabric totally out of thread. Try using a 12 wt. and a metallic thread running through a single eyed top stitch needle to achieve an unique texture to your project. Stitches will be uniform and even when doing twin needle work such as pintucks. Even sergers run smoother when you use the Thread Director. My Thread Director is a permanent fixture on my machine. I use it for everything!