Engineering and physics of yo-yo design

[Exmime]

You can’t talk about Yo-Yo design without bring up BiST

B!ST Yoyo Gallery

Well, some of you are mailing me, asking for yoyos. Please stop. As I wrote to those who asked for it, I run out all my stock yoyos years ago, and mods are “one of a kind”. I don’t have anything to sell Sorry about that.