02nelsc:: ... how do servos move all those rotors if they have no fly bar and paddles ...
tippy:: ... our standard size servos (even the top dollar high torque kind) simple don't have the muscle to do the job unless you want to fly around in scale mode all the time (not that there is anything wrong with that).
Generally, flying a mult-bladed head doesn't involve the radical pitch changes that we need to do 3D stuff so the servos can handle it.
I'm not an expert on these heads but if they were configured in a 4 servo eCCPM setup, you would have the forces of 4 servos teamed together.