I use YLI Wonder Invisible thread in both top & bobbin. Just be careful winding the bobbin that it does not wind too tight. It will crack the plastic bobbins. I've learned to not fill the entire bobbin. Also, don't have the thread going through tension area when winding the bobbin. You can damage your machine.
Originally Posted by stephaniequeen
I want to quilt the top of my quilt with invisible thread, but do not like the bobbin thread showing through. So can you wind your bobbin with invisible thread and quilt the top and bottom with invisible thread??