Huh, dont think I've said anything about it being the greatest teaching tool ever. It's fun and cheap. If you have a free weekend from big bike days, it's a great way to spend an afternoon. And when a guy with a mini bike that fits in a class I race in posts a picture in leathers "practicing" I get excited. All of the excuses I've seen so far why not to do it dont really add up. I've offered my bike for free to anyone anytime to come check it out, numerous times. Had complete strangers sleep at my house before events. Met really cool people doing it, same with big bikes man, its all good! We all like bikes, this is just another avenue.