Curtis,

Never seen a JJ turbine, so can't answer all your questions, but can answer a few.

Printing the German magazine test article on RCU is what's called a copyright violation. If the magazine choses to post the article to the web, then someone could legally link to it, otherwise posting the article is a violation of the copyright holders rights.

Dangerous how? Well, I personally have seen hot wheels come apart and hot wheel blades punch the sides of the case, the sides of the airplane and keep going. Centripidal force at 160K RPM is huge which makes marginally constructed hot wheels dangerous. I personally considered a JJ turbine so I sent an email to both the factory rep in China and to Justin asking who certified their hot wheels and never got an answer from either. I decided (for you trolls, that means this is my personal opinion) they had something to hide, so paid the extra for a Wren instead just so I know I'd be getting a certified and tested hot wheel.