ok I'm a nub to setting up collective pitch and throttle curves.I put this aplus 400 together from a kit.I have a futaba7ch radio.When I throttle this puppy up it pushes down rather than up.I been searching for some help .Thats brought me here.any help is greatly appreciated.I've held it in my hand and gave it more than half throttle and it pushes down harder and harder.Then when I let off slowly it feels like it wants to lift.Weird.I'm thinking a servo is reversed or my pitch is way off and working backwards.not sure.[&o]