@oaney Very hard to say what the voltage is since once the air breaks down at 10/20K + it becomes conductive and you get 'feelers' of plasma coming off the electrodes, see images on large 'feelers' on my website (xionone.co.uk) - yes a VERY low current, microamps at best!
I am a heli learner, many crashes learning to hover indoors!
I would recommend spending the cash on a simulator (eg Phoenix RC) I have come on leaps and bounds as you get to fly very realistically. Saves on battery and motor wear as well!
I cant believe your getting so few hits - this is an amazing album