I'm finding it challenging to miter the inside corners on the scalloped edges of the DWR. Here is a video I watched to see how it was handled, but I'm not finding it as easy to do as what is shown. The binding was sewn down by machine on the top side in the same way the video suggests, and I'm having no problems mitering the front side, although I do find the process tedious. However, when I flip it over to miter the back side, it gives me fits. I'm open to any and all suggestions. I've even resorted to using PINS, if that is any indication how meticulous and desperate I'm becoming. ;) I'm using a double-fold or French fold binding (2 layers), which may be contributing to the challenge.