3D requires several components. First, you need the right airframe. What you need mostly is control surfaces that constitute 50% or more of the total stab area. BIG Elevators! Big Rudder! Ailerons help but the tail is most critical. A rearward CG is helpful but it doesn't have to be so far back that it makes the plane dangerously unstable. You will need dual rates on the radio, you won't want to fly with extreme throws! You need reliable power, you don't need a rocket but it needs to be able to pull out from a dead stop with some authority. You need patience. It will take practice.

You can ck out my site for some more info. I have a good bit there.

PS - look for some local help. If you don't have any locals that 3D get to New Orleans some time. There are several good pilots there, or you can come over to Mobile, AL and see a bit.

Bean