So, the side borders (there's another, and the picture is sideways) are cut long enough that I could add one more row of pieced blocks and black border, and make this quilt 42" x 72" instead of 42" x 62". But that yellow secondary pattern will be off. So my question is two-fold. Is a couch sized 62" long symmetrical quilt big enough? Or, would adding an extra row of blocks and unbalancing the symmetry of the be a better plan?