Here's how I'm now setting up my Spektrum iX14 transmitter and AS3X+/SAFE receivers in my EDF's. The settings for other types of planes would be very similar. Since Horizon has apparently doubled the gain of the AS3X algorithm, I'm now setting the AS3X sensitivity to 0.5X instead of 1X and using adjustable gains to determine the optimum gyro gains for AS3X, Stop Lock, and Heading Hold. The AS3X gain is on the L Trim switch, Stop Lock gain is on switch C, and Heading Hold is on the R Trim switch.