diff --git a/MechJeb2/MechJebModuleAscentBaseAutopilot.cs b/MechJeb2/MechJebModuleAscentBaseAutopilot.cs
index 8f657af66..5f5abf268 100644
--- a/MechJeb2/MechJebModuleAscentBaseAutopilot.cs
+++ b/MechJeb2/MechJebModuleAscentBaseAutopilot.cs
@@ -112,7 +112,6 @@ public override void OnFixedUpdate()
                 {
                     if (Enabled && VesselState.thrustAvailable < 10E-4) // only stage if we have no engines active
                         StageManager.ActivateNextStage();
-                    TimedLaunchHook(); // let ascentPath modules do stuff edge triggered on launch starting
                     TimedLaunch = false;
                 }
                 else
@@ -214,11 +213,6 @@ private void DriveAscent()
                 Debug.Log("Awaiting Liftoff");
                 Status = Localizer.Format("#MechJeb_Ascent_status6"); //"Awaiting liftoff"
 
-                if (TMinus > AscentSettings.WarpCountDown)
-                    Core.Guidance.Enabled = false;
-                else
-                    Core.Guidance.AssertStart(false);
-
                 Core.Attitude.SetAxisControl(false, false, false);
                 return;
             }
@@ -289,11 +283,6 @@ private void DriveCircularizationBurn()
 
         protected abstract bool DriveAscent2();
 
-        protected virtual void TimedLaunchHook()
-        {
-            // triggered when timed launches start the actual launch
-        }
-
         //data used by ThrottleToRaiseApoapsis
         private          float         _raiseApoapsisLastThrottle;
         private          double        _raiseApoapsisLastApR;
diff --git a/MechJeb2/MechJebModuleAscentPVGAutopilot.cs b/MechJeb2/MechJebModuleAscentPVGAutopilot.cs
index cab7130b7..d4a4d2d30 100644
--- a/MechJeb2/MechJebModuleAscentPVGAutopilot.cs
+++ b/MechJeb2/MechJebModuleAscentPVGAutopilot.cs
@@ -1,6 +1,7 @@
 extern alias JetBrainsAnnotations;
 using System;
 using KSP.Localization;
+using UnityEngine;
 
 /*
  * Optimized launches for RSS/RO
@@ -32,6 +33,24 @@ protected override void OnModuleDisabled()
             Core.Glueball.Users.Remove(this);
         }
 
+        public override void Drive(FlightCtrlState s)
+        {
+            if (TimedLaunch)
+            {
+                if (TMinus <= AscentSettings.WarpCountDown)
+                {
+                    SetTarget();
+                    Core.Guidance.AssertStart(false);
+                }
+            }
+            else
+            {
+                SetTarget();
+                Core.Guidance.AssertStart();
+            }
+            base.Drive(s);
+        }
+
         private enum AscentMode
         {
             VERTICAL_ASCENT,
@@ -43,14 +62,8 @@ private enum AscentMode
 
         private AscentMode _mode;
 
-        protected override void TimedLaunchHook() =>
-            // timedLaunch kills the optimizer so re-enable it here
-            Core.Guidance.Enabled = true;
-
         protected override bool DriveAscent2()
         {
-            SetTarget();
-            Core.Guidance.AssertStart();
             switch (_mode)
             {
                 case AscentMode.VERTICAL_ASCENT:
diff --git a/MechJeb2/MechJebModuleGuidanceController.cs b/MechJeb2/MechJebModuleGuidanceController.cs
index 8e4b08756..1bf00094e 100644
--- a/MechJeb2/MechJebModuleGuidanceController.cs
+++ b/MechJeb2/MechJebModuleGuidanceController.cs
@@ -75,7 +75,10 @@ protected override void OnModuleDisabled()
         private bool _allowExecution;
 
         // we wait until we get a signal to allow execution to start
-        public void AssertStart(bool allowExecution = true) => _allowExecution = allowExecution;
+        public void AssertStart(bool allowExecution = true)
+        {
+            _allowExecution = allowExecution;
+        }
 
         public override void OnFixedUpdate()
         {