Yes, the web site may have said that it went 208.... But note that it does not say with what equipment! Only says clocked at 208mph... Advertising can lead you to believe things that are not necessarily true. Yes, I would not doubt that the plane has been clocked at 208mph. However, they are trying to sell the plane by saying it is fast and they do not mention with what particular motor.
MVVS's are great motors. I'm not convinced that they are as powerful as nelsons, but, like I said, they could surprise me.
Take a look at this link... One person bought the motor and has not been able to get it to 21,000 rpm. Looks like you?
http://morrishobbies.com/product_rev...215da0ccabbea0
Like I said, advertising is funny sometimes. You probably can make it turn 22,000 with a 7" diameter, 6" pitch prop... They don't tell you how you how they got the 22,000 rpm. For $170, if this turned props and rpms as good as it seems the Jetts and Nelsons wouldn't be selling as good as they are.
Michael