On my machine you have to adjust the tension of the bobbin case carefully to get it to work. When I talked to the sewing machine repairman he told me to only use Metler thread to try this (in the bobbin and clear in the top) and DON'T try it through a quilt sandwich. He said use it as a decorative stitch on the top layer instead. I haven't done anything with it because I like to hand quilt anyway but test in on a similar sample before you try it on your quilt.