I’ve had my tracksaw for quite some time and use it when cutting down sheet goods. Often it is expensive plywood or veneer for cabinet sides, backs, and shelves. So I can’t mess around with cuts being out. I’ve always used the dewalt clamps. Measure both ends of the piece, line up the track, clamp both ends, and cut. Way more accurate than relying on what looks like to be an 8” perpendicular piece of metal. Takes a minute more to set up the cut but I’m paid by the hour and having a cut out by 1/16 or worse is not an option.