https://youtu.be/K_O_3H7FrGA

After conducting 3 tests, I've finally figured out the cutting performance difference between straight and curved swords. The straight sword is much weaker in the running forward cuts while the curved sword's curvature helped to preserve the slicing ability. The katana outperformed the DS in the running forward cuts in both left and right directions, despite being lighter and shorter. The straight sword DS outperformed the curved sword in standing cuts due to higher weight, and outperformed the curved sword in backing away cuts due to longer reach.