You can also change to a very small stitch (or even stitch-in-place) to secure threads at beginning and end if you are worried about them coming loose before you get the binding on.
Backstitching with a walking foot causes the thread to jam up.
You can also do wavy lines with the walking foot and feed dogs up. That can be a lot faster than straight lines because you don't have to worry so much about accuracy. Just "steer" the quilt as it is feeding into the walking foot. You cannot do tight curves this way, but it's easy to do gentle curves this way. You could cross-hatch them or just do one direction.