I'm not sure I understand what you are saying...you will need to cut your border on the straight of grain. Sew to your quilt top, measure and mark your scallops but don't cut them until you are done quilting. Then sew on the scallop lines all the way around so that all layers are secured. You will cut your binding at 2 1/2 or 2 1/4 wide and that will need to be bias. You will have lots of grief if you try to put on a five inch binding. I like Jenny Doan's method of sewing the binding to the quilt. It works for me.