RE: 5000+ feet video flight
CenTexFlyer is correct, flying a model at 5000 feet isn't legal in the USA. Any altitude above 400 feet without a specific approval from FAA Air Traffic Control would be at least careless operation of an aircraft and might be considered reckless. If an accident between a model and a full size happens, the hobby will get a black eye and some serious FAA mandated restrictions. If you don't believe me, read Federal Aviation Regulation 1.1 definition of an "aircraft", it does not exclude "model aircraft", and read FAR 91.13 Careless or Reckless operation of an aircraft. The FAA Advisory Circular AC 91-57 sets the 400 foot maximum altitude, and while it is "advisory", it does set the standard in an enforcement case.