nzak that idle up switch is a bisach. I was on the ground the other day when I hit it. The heli pins to the floor so hard the blades start to pitch on there own form the force. Figured thats what was going to happen. I twists the blades to force air up instead of down for being upside down.

I held the heli in my hand upside down to see something. Hit the idle up and she was prety stable when inverted.