RE: Blade CX:
Do you have the destructions to this heli? If not after you get the motors hooked up right and the heli still spins their is a small hole in the side of the 4n1 with a screw head in it if the heli spins to the left turn the screw to the right. This is how you trim out the tail. Also check to make sure the swash plate is level with the heli this is a good starting point to get the heli to hover nice.