I need some help with this situation. I have backing that is not big enough to cover the back of my quilt top. I am going to add some borders around the entire length & width of this backing to make it fit with the top. My problem is - how do I make sure that the back of the quilt is centered with the top of the quilt. I do not want borders that are not the same width all around when it is sandwiched with the quilt top. Since the backing is face down when I start the sandwiching & then the batting is on top of that - how do I make sure that I end up with everything centered when it is finished? Is it just trial & error or does anyone have any tried & true method to make sure everything is even when done? Any help would be appreciated.