I need to make a quick baby quilt and want to do pinwheels. I love the tut from MO Quilting, sewing all 4 sides and then cutting. My question is, if I want a finished 5" square (not including the 1/4" seam) what size do I cut my original fabric. I can't find any posts that tell you how to figure the original size fabric to get the finished size you want. Any help would be appreciated.