The new 180"Z" do have the 3 axis gyro. Sorry I had not try it yet. Only tried the 4G6s and 4#6s. I think the 180Z should be more stable as it is a bigger heli.
I want to try it too but I don't think it is out yet.... I tried the ufly"s" too which handle better than the normal ufly when flying outside. I think sooner or later all walkera heli will have this system.