Hi Mike,
Did the heli quit?
Or was it a case of loss of orientation?
I know that the first time I flew up, and it was only 30 or 40 feet, I found that I could no longer tell what the heli was doing. It resulted in a death dive that broke the frame of my heli. I simply was not used to viewing the bottom of the rotor, so I lost all of my visual cues about what the heli was doing. I don't fly anywhere close to overhead now.
Vince