I am inspired!! There is no longer a need to wrap front to back. I've quilted enough to see alternatives existed but these suggestions have brought out creativity! Next quilt will be finished using the knife-edge. I've done that before on hotpads, not knowing it had such a name.
I am going to pull out all the extra backing chunks and see how much is left. Facing seems to fit what I'm looking for. This will be our summer bedcover/quilt, large and lightweight. The edges will barely be seen, but each square has potential for "I Spy" time.
The wisdom of many- t'is grand!