jr helis

So , as you guys have seen in my signiature, one of the three helis I have is a VIBE 50. IT is a heli made by JR. JR made some bad birds (esp in the 600 nitro class) but then they copied ther JR VIBE 90 design to make a 50 and it was extremely sucessful. And then they copied Vibe 50 deisng to...