RE: help me decide
If you have never flown a Cub, you are missing out! Since you are a heli and 3D pilot, you will really enjoy the Cub. With the Cubs long wing, rudder management is a must. Start your turns and barrel rolls with rudder, then aileron. They are a great lazy day flyer, and with a bigger engine, they are capable of every scale maneuver. I'd put a .91 4 stroke in it, if you can afford too, if not, a .61 will also do nicely.