RE: 2nd Plane
The Cub would make a better "second" plane, just on the surface. Decathlons are aerobatic planes in full scale, and the scale models I've seen can be twitchy and difficult to fly. While this one may be "dumbed down" with elevator/rudder control, I would still shy away from it until a more experienced pilot can confirm its flying qualities. I have heard favorable reports on the Cub.