[As the dummy jerks about in offense, Chikusa takes a nice long step away from Marinette. Hey, she's the one who wanted to practice with it. He doesn't really want to spar right now, especially with a living practice dummy. It's a lot more interesting to watch her.]

It depends on a few things... Yoyos work as they do because of physics... and you'll want them adjusted for how tall you are...

[His tend to be pretty long just because he's pretty long, after all.]

...But if you wanted longer... I guess it could be an experiment... [That, too, would be interesting to look into.]