Originally Posted by Happy Treadler

Hope it's OK I just jump in here. If you're planning on using the 15-91 for FMQ, a walking foot wouldn't work because you won't be able to move your quilt in different directions (only forward). A walking foot would work well for straight line quilting, as well as 'curvy' quilting, but you'd probably need an open-toed hopping foot for the freedom for FMQ. I believe the 15-91 is a low shank machine, so they should be readily available. :) Please someone correct me if I'm mistaken...