I'm hoping it will work better for embroidery once I come up with a feed dog cover plate for one of my machines. I think that the cover plate will improve the action of the foot. I've got some cover plates, but I can't find them. I don't think it will ever work well for FMQ, even with a cover plate. Too much needle sticking out to move the fabric far enough. Darning requires lots of stitches in a small space, so I think this foot is better suited for darning or embroidery.
CD in Oklahoma