Here is a little more detail of what i need

Choices are:


Spektrum DSM 3CH Module Surface System retails for around 160.00





Spektrum DSM Module System: FUT 3PK, HRS Only retails for around 200.00
Overview
Futaba 3PK owners interested in the fastest possible processing speed are sure to be blown away by Spektrum’s latest engineering breakthrough.
A new, dedicated module and receiver have been developed specifically for use with the Futaba 3PK when HRS modulation is selected. The Spektrum latency has been reduced to just 2ms.

This system is designed for use with digital servos only. The module and receiver are designated “Futaba HRS Version” and are for use with the HRS system only.


Spektrum DSM 3-CH Pro Series Surface Module/Rx: FUT/HRC for 100.00$

And i need to get some info on the Futaba Systems

Any input guys.