Radios are like cars, some like Chevy's and some like Fords. I fly nothing but Futaba, which is not to say that the others out there are no good. JR and Spectrum are also quality radios. If you are just learning you may want to contact your local club and see what the instructors are using so then you can do a buddy box system with them. Engines are the same way. I like and only us OS engines. As for the Cub, it is a great flying plane. I would not recommend going over the rated power recommendations. You will also need to learn throttle management with a Cub, especially on take off. Power needs to be feathered in with a lot of rudder use and once the tail is off the ground, you can apply more power. The Cub is not designed to go fast but with the clipped wings it will do limited aerobatics. Good Luck, Dave