RE: First Aerobatic Plane
Tennis, if you plan on learning 3D get an electric foamy or you end up repairing the twist alot. As I don't know the extent of your flying skills
I will go off the fact you are saying first aerobatic plane after trainer. I would reccomend the fourstar, Tiger, Or Pulse, in the 60 size.
These planes will give a more firm grasp of aerobatic flying before diving into a 3D plane.