I have two large 80" x 25" walnut slabs I'm preparing for a trestle table top. Anyone have any tips for lining up the bookmatch and deciding how much to take off the center? The inside edge of each slab is pretty straight so I won't have to take off much, maybe 1" or so tops. They do have a live edge. I do plan on leaving a gap in some places, á la Nakashima. I guess deciding where to cut is largely subjective? Unfortunately I'm also going to have to use a circular saw and long straight edge guide to cut them.