Is it possible for your buddy to carry the HID for you? You could work out the signals necessary for you to direct the lighting.
As for blown shots with too much light perhaps setting try using spot metering as opposed to matrix metering - or even dialing in some negative exposure compensation. Distance from light souce to subject could be varied as well.
As for blown shots with too much light perhaps setting try using spot metering as opposed to matrix metering - or even dialing in some negative exposure compensation. Distance from light souce to subject could be varied as well.