So, I recently got into HEMA (Historical European Martial Arts) and for now I'm training with the group's spare swords, but I'm on my way to own a sword of my own. A real one, just not sharpened. And I was wondering if it's okay to do programs (e.g. Ronin's Blade) and workouts designed for katana with a sword. Okay as in that it won't be incorrect because it was designed for other equipment. I suppose that's a silly question, but anyway.