He's now three days after Christmas and getting very accurate. He's now flying this thing, which costs about £35, to spot landings and maintaining constant headings and heights very well.
Yes, each of the rotor sets consists of a double contra-rotating rotor with a balancing bar above, so 6 rotor sets of some description.
The way technology and miniaturisation continues to advance is incredible and you start to wonder if lessons from a little toy like this will eventually start to filter their way back towards real helicopters.