diff --git a/ArduPlane/servos.cpp b/ArduPlane/servos.cpp
index 496255a75a54c..9ef0353f29fd8 100644
--- a/ArduPlane/servos.cpp
+++ b/ArduPlane/servos.cpp
@@ -359,28 +359,41 @@ void ModeAuto::wiggle_servos()
         return;
     }
 
-    int16_t servo_value;
-    // move over full range for 2 seconds
+    int16_t servo_valueElevator;
+    int16_t servo_valueAileronRudder;
+    // Wiggle the control surfaces in stages: elevators first, then rudders + ailerons, through the full range over 4 seconds
     if (wiggle.stage != 0) {
-        wiggle.stage += 2;
+        wiggle.stage += 1;
     }
     if (wiggle.stage == 0) {
-        servo_value = 0;
-    } else if (wiggle.stage < 50) {
-        servo_value = wiggle.stage * (4500 / 50);
+        servo_valueElevator = 0;
+        servo_valueAileronRudder = 0;
+    } else if (wiggle.stage < 25) { 
+        servo_valueElevator = wiggle.stage * (4500 / 25);      
+        servo_valueAileronRudder = 0;
+    } else if (wiggle.stage < 75) {
+        servo_valueElevator = (50 - wiggle.stage) * (4500 / 25);        
+        servo_valueAileronRudder = 0;
     } else if (wiggle.stage < 100) {
-        servo_value = (100 - wiggle.stage) * (4500 / 50);        
-    } else if (wiggle.stage < 150) {
-        servo_value = (100 - wiggle.stage) * (4500 / 50);        
+        servo_valueElevator = (wiggle.stage - 100) * (4500 / 25);        
+        servo_valueAileronRudder = 0;
+    } else if (wiggle.stage < 125) {
+        servo_valueElevator = 0;
+        servo_valueAileronRudder = (wiggle.stage - 100) * (4500 / 25);
+    } else if (wiggle.stage < 175) {
+        servo_valueElevator = 0;
+        servo_valueAileronRudder = (150 - wiggle.stage) * (4500 / 25);  
     } else if (wiggle.stage < 200) {
-        servo_value = (wiggle.stage-200) * (4500 / 50);        
+        servo_valueElevator = 0;
+        servo_valueAileronRudder = (wiggle.stage - 200) * (4500 / 25); 
     } else {
         wiggle.stage = 0;
-        servo_value = 0;
+        servo_valueElevator = 0;
+        servo_valueAileronRudder = 0;
     }
-    SRV_Channels::set_output_scaled(SRV_Channel::k_aileron, servo_value);
-    SRV_Channels::set_output_scaled(SRV_Channel::k_elevator, servo_value);
-    SRV_Channels::set_output_scaled(SRV_Channel::k_rudder, servo_value);
+    SRV_Channels::set_output_scaled(SRV_Channel::k_aileron, servo_valueAileronRudder);
+    SRV_Channels::set_output_scaled(SRV_Channel::k_elevator, servo_valueElevator);
+    SRV_Channels::set_output_scaled(SRV_Channel::k_rudder, servo_valueAileronRudder);
 
 }