I check my machines (including the table saw) for accuracy occasionally when I maintain them for lubrication, etc. (no fixed schedule... 2 or 3 years?).
Indeed, the SawStop/Kapex combo is hard to beat for amateurs. I also use the SawStop for jointing, resawing, and circle-cutting.
Instead of banners, I picked up a few activated brake/blades from the SawStop demos, and have made a couple of clocks out of them, similar to the one in the image.