I got a 7c that is the same chan as my radio on my cp pro. I did not have to change anything, just had to program the transmiter and I was ready to fly. Programing the transmiter takes a while....it took me one whole battery charge just to get the trasnmiter programed the way I like it. I will help you with any specific programing questions you have, but don't have the time right now to go through all the settings.