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I got my twister police helicam here at hobby lobby.. and I found that the heli itself had areobatic qualities with our RDJ simulation blades.. This heli (never) goes out of control no matter what you throw at it..Fast speed aileron banks usualy makes any (coaxial) heli to (tip) its axis and go out of control ..A (death dive) as most call it... After about 14 full flights (out of the box) of the police helicam using these blades the helicopter simply recovers from anything... I recomend the twister police helicam..