I am making a double wedding ring wallhanging for a gift. Now, I have about a dozen different patterns and they are pretty much divided as to whether to press the seams towards the arcs or towards the melons. They both have advantages. Towards the melons makes a flatter seam, and if you press toward the arc you don't run the risk of seeing any darker arc fabrics through the lighter melons. The instructions for the one I'm making says to press towards the arc, but the fabric is fighting me and won't stay down. Think it would be okay to press the other way? Is one way better than the other? Any of you who have made one, which way did you press your seams...and why??