Ok, just got the answers for you on the HRS vs Pro Series.
The HRS system does not have ReliaKote™ conformal coating on it. It does however have the improved oscillator, much like the Pro Series equipment. One other difference is that the HRS Spektrum receiver is not compatible with the Telemetry system. Remember that a radio operating in HRS mode has almost 1/2 the total latency (radio and DSM module/receiver) of one of the original Spektrum systems when you figure in the inherent latency designed into the radio. Hope that helps
