I am bidding a job that will require pulling countertops from one area of an office and fitting, cutting and installing them in another area. There will be both inside and outside miter joints to be cut to length and fit. I have cut a couple tops and rejoined them before but I haven't been pleased with the final product. Currently I am just using a large protractor to find my cut angle, a circular saw and straight edge to cut the joints and then bolts with flat plates to hold the joints in place along with glue. I always back bevel the seams a bit but it still doesn't give it that factory cut and fit look. Is there a better more exact method or do I just need to refine my approach more yet?