Wooden sword vs. Slingsword

Some of y'all may (or may not) recall a few years ago I built an 18" sword blade for Joerg Sprave, the German mad genius of creative and deadly slingshots and other unconventional weapons.  He built a handle for the blade that (of course) incorporated a slingshot.

I was pleasantly surprised to see today that he had brought the slingsword back out, as a basis of comparison for a wooden sword he had made from European dogwood, the hardest wood that grows in his area.  The slingsword shows up just before 8:00 in the video.

As far as I'm aware, this is the first time a blade of mine has been used on a tatami mat cut.  His comment: "The tatami felt like NOTHING AT ALL when I attacked it with your blade... great work for sure."  😎