the 7c or 9c are good choices more radio then needed to begin with but you grow into it. You don't need all the functions to begin with but they are there for experimenting. I had the 6 exa and it was betwwen a four and a 7c and I was not happy with its abilities as I progressed. (I had one of the first ones so it might have changed since I had mine.) When I got into mixing the 6 exa was only partially able to do what I wanted so I had to upgrade. Before buying radio see what the instructor at the club you are learning at flies so that you will have a radio compatible with the buddy trainer system they use. lt 40 is a great choice, I have no experience with evolution but know os 46 ax is great engine and reliable from personal experience.