Since you are flying with the Futaba 6xhs, I'd go rappy v-2. They are about $269 at most mailorder places. The 6xhs won't do CCPM and there is too much slop/bind in the sliding tray on the caliber to use the mechanical CCPM. You will be very happy when you go from your Nexus to a rappy. Far superior feel and performance.
basmntdweller