At WRC 2017, we implemented a new system which asked all players before the final hand (all last/orasu) to tally their scores, enter them onto a square piece of paper which would then be placed in the center of the table. Scores are checked for accuracy and that they sum to zero. This not only reduced errors in the final calculations but also proved very convenient for players to calculate the point difference and strategize appropriately.
If you have any questions about their use, please do not hesitate to reach us through the contact form.
Feel free to download these and use them at your own event!