Sorry Paul, that's me typing quickly without thinking!! Asymmetric is what I meant to type. You can spit the output non-equally whereas on a symmetric pack you can only have the same output on each head. So in this case, I was driving the RH head (camera view) from the 0.5K outlet and the LH from the 1.5K but the distance was about 6X further on the left (hence ca 2:1). Although they were driven from those ratios the total output was set at about 20% so the full power of the pack wasn't being employed (it would have been far too bright at those distances). The main light is not that much above head height so you don't get that many shadows under the eyelids, nose and chin and the two side lights take care of any residue.