I know I haven't messed with them yet. I bought a 9C as my first radio because I knew I'd be sticking with the hobby. About all I have programmed in is a couple of servo reverses and the throttle kill. And we won't even get started on how long it took me to finally figure the throttle kill out . (Actually, don't get me wrong, I'm not saying it was hard to program, but for some reason, I never quite got it right at first.)