I never saw a Bow Ti in real life though I've always been fascinated with them. I did ride a Szazbo a few times back in the day and can confirm that it would stinkbug as badly as you'd expect. I still search Ebay for Szazbos and Bow Tis once in a while.
John Castellano, who designed the Szazbo and Bow Ti recently (2009) created the Son of Szazbo. Weirdly I want one. http://www.castellanodesigns.com/Zorro.html