I have used an Xbus 8 channel RX, connected the Xbus port to the Powerbox SRS power expander, changed the software from Futaba (default) to JR DMSS, TX to mode B for other than JR Xbus and can't get any sign of life when I connect a Savox servo to the SRS expander. Anyone got any experience with servos other than JR with this set up? What have I missed? I also gather the Xport duo XB1-14DRS takes any servos? Regards Murray.