Most of us are familiar with the five cut method of squaring fence on table saw sled. But, do you know there is a three cut method, which could actually become a two cut method. Simply place a piece of plywood on sled after squaring fence a lose as possible. Make a cut on right side, then flip work end for end and make second cut. Measure cuts front and rear, then split the difference to know how much to adjust fence. There is a video showing how to do this on you tube.