OK, I have to throw my 2 cents in on dual rotor vs. single rotor. The ultimate easiest gyro to fly is a dual rotor with the flat stock blades and a small wing like the DB Sport. I had two of them and they fly great. The rotors just provide more balance than lift. I removed the wings and added aluminum/wood booms to hold new lifting blades. Now it's a real gyro but requires more skill to fly. The best and easy pure dual rotor to fly was a converted SIG Seniorita. I played with a helicopter rate gyro on the rudder and that provided a lot of stability. The FMA Co-Pilot does not work well on dual rotors. If the gain of the Co-Pilot is set high enough to be affective it wags the tail. For a single rotor, a converted SIG Senior Kadet is probably the overall best for performance and easy to fly. Add the FMA Co-Pilot and anybody can fly it.

For a beginner, if I were to compare the best dual vs. the best single overall, I would choose the single rotor for one reason. If the dual rotor has lifting blades without any wing, it must point directly into the wind on takeoff or it will flip over due to one rotor coming up to speed before the other. A single rotor will tolerate some cross wind. Once in the air, I would rate them equal

Another opinion.

Phil