pzar

I have an RC Guys SuperD that I bought a PowerBox iGyro 1e for rudder to improve ground handling. Have a Spektrum Dx9. The Powerbox Gyro has built in Gain Curve. I cannot get it set up in the DX9 where I use the Rknob pot for trim and one of the switches to turn it on and off. I am using the Gear input on a 7000 receiver for gain control. The manual is not real clear or perhaps I dont understand all the relationships properly.....need a few tips on how to do this ??