ORIGINAL: Kevinator9
Not sure. I haven't bought a lipo battery so I'm not sure how much. They are totaly different. cx is co-axil heli and df4 is single blade with tail motor. It's your choice.
FMS site
http://n.ethz.ch/student/mmoeller/fms/index_e.html
Look around on some of those sites I gave you for a cx.
My pleasure to help!
Since the Balde CX is a Co-axil heli it's easier to control but also it is limited in flight (maneuvers). The Walkera is more difficult to control but can do more maneuvers in air (and it is cheaper), right? Is the Walkera too dificult to learn? I have NEVER playerd with a RC heli before...
Thanks