I am confused if you have the 9C then why go to the conquest doesn't the 9C have multi model memory.
also for the most part a 4ch plane is alot easer to fly than a 3 having to rely on the rudder to correct yaw can be trying at best, without a bunch of dihedral to help keep the plane stable in flight, ailerons are extremely helpfull in just about all aspects of flying,thats why full scale planes have them.
IMNSHO all a 3ch radio is good for is slope soaring and putting around the sky making circles and loops, there is no aerobatic plane without all the necessary control surfaces,rudder,elevator,aileron,and throttle.