diff --git a/ModelMultiParticlePersistFX.cs b/ModelMultiParticlePersistFX.cs
index 9a287d6..b8ddf6f 100644
--- a/ModelMultiParticlePersistFX.cs
+++ b/ModelMultiParticlePersistFX.cs
@@ -120,6 +120,8 @@ public class ModelMultiParticlePersistFX : EffectBehaviour
 
     public MultiInputCurve offset;
 
+    public MultiInputCurve force;
+
     // Logarithmic growth applied to to the particle.
     // The size at time t after emission will be approximately
     // (Log(logarithmicGrowth * t + 1) + 1) * initialSize, assuming grow = 0.
@@ -394,10 +396,9 @@ public void FixedUpdate()
                     }
                     finally
                     {
-                        particles[j].velocity = (persistentEmitters[i].pe.useWorldSpace
-                                                     ? (Vector3)pVel
-                                                     : persistentEmitters[i].pe.transform.InverseTransformDirection(
-                                                         pVel)) - Krakensbane.GetFrameVelocity();
+                        particles[j].velocity = (persistentEmitters[i].pe.useWorldSpace ?
+                                              (Vector3)(pVel - Krakensbane.GetFrameVelocity()) :
+                                              persistentEmitters[i].pe.transform.InverseTransformDirection(pVel - Krakensbane.GetFrameVelocity()));
                         particles[j].position = persistentEmitters[i].pe.useWorldSpace
                                                     ? (Vector3)pPos
                                                     : persistentEmitters[i].pe.transform.InverseTransformPoint(pPos);
@@ -620,8 +621,12 @@ public void UpdateEmitters(float power)
             pkpe.pe.minEnergy = pkpe.minEnergyBase * energyPower;
             pkpe.pe.maxEnergy = pkpe.maxEnergyBase * energyPower;
 
-            float localVelocityPower = speed.Value(inputs);
-            pkpe.pe.localVelocity = pkpe.localVelocityBase * localVelocityPower;
+            float velocityPower = speed.Value(inputs);
+            pkpe.pe.localVelocity = pkpe.localVelocityBase * velocityPower;
+            pkpe.pe.worldVelocity = pkpe.worldVelocityBase * velocityPower;
+
+            float forcePower = force.Value(inputs);
+            pkpe.pe.force = pkpe.forceBase * forcePower;
 
             pkpe.pe.sizeGrow = grow.Value(inputs);
 
@@ -786,6 +791,7 @@ public override void OnLoad(ConfigNode node)
         scale = new MultiInputCurve("scale");
         size = new MultiInputCurve("size");
         offset = new MultiInputCurve("offset", true);
+        force = new MultiInputCurve("force", true);
         logGrow = new MultiInputCurve("logGrow", true);
 
         ConfigNode.LoadObjectFromConfig(this, node);
@@ -796,6 +802,7 @@ public override void OnLoad(ConfigNode node)
         scale.Load(node);
         size.Load(node);
         offset.Load(node);
+        force.Load(node);
 
         logGrow.Load(node);
 
@@ -813,6 +820,7 @@ public override void OnSave(ConfigNode node)
         scale.Save(node);
         size.Save(node);
         offset.Save(node);
+        force.Save(node);
         logGrow.Save(node);
 
         angle.Save(node);
@@ -968,6 +976,7 @@ private float minInput(int id)
         min = Mathf.Min(min, scale.minInput[id]);
         min = Mathf.Min(min, size.minInput[id]);
         min = Mathf.Min(min, offset.minInput[id]);
+        min = Mathf.Min(min, force.minInput[id]);
         min = Mathf.Min(min, logGrow.minInput[id]);
 
         return min;
@@ -982,6 +991,7 @@ private float maxInput(int id)
         max = Mathf.Max(max, scale.maxInput[id]);
         max = Mathf.Max(max, size.maxInput[id]);
         max = Mathf.Max(max, offset.maxInput[id]);
+        max = Mathf.Max(max, force.maxInput[id]);
         max = Mathf.Max(max, logGrow.maxInput[id]);
 
         return max;
diff --git a/PersistentKSPParticleEmitter.cs b/PersistentKSPParticleEmitter.cs
index 226fd7f..48b71b1 100644
--- a/PersistentKSPParticleEmitter.cs
+++ b/PersistentKSPParticleEmitter.cs
@@ -58,6 +58,10 @@ public class PersistentKSPParticleEmitter
 
     public readonly Vector3 localVelocityBase;
 
+    public readonly Vector3 worldVelocityBase;
+
+    public readonly Vector3 forceBase;
+
     public PersistentKSPParticleEmitter(
         GameObject go,
         KSPParticleEmitter pe,
@@ -79,6 +83,9 @@ public class PersistentKSPParticleEmitter
         maxSizeBase = (float)templateKspParticleEmitter.maxSize;
 
         localVelocityBase = templateKspParticleEmitter.localVelocity;
+        worldVelocityBase = templateKspParticleEmitter.worldVelocity;
+
+        forceBase = templateKspParticleEmitter.force;
 
         PersistentEmitterManager.Add(this);
     }
diff --git a/Properties/AssemblyInfo.cs b/Properties/AssemblyInfo.cs
index 2afb15b..82ea695 100644
--- a/Properties/AssemblyInfo.cs
+++ b/Properties/AssemblyInfo.cs
@@ -33,4 +33,4 @@
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
 [assembly: AssemblyVersion("0.9.0.0")]
-[assembly: AssemblyFileVersion("2.0.0.0")]
+[assembly: AssemblyFileVersion("2.0.1.0")]
diff --git a/SmokeScreenUtil.cs b/SmokeScreenUtil.cs
index 145d9d1..2c123f7 100644
--- a/SmokeScreenUtil.cs
+++ b/SmokeScreenUtil.cs
@@ -38,7 +38,7 @@ static class SmokeScreenUtil
         public static string WriteRootNode(ConfigNode node)
         {
             StringBuilder builder = new StringBuilder();
-            print("node.values.Count " + node.values.Count + " node.nodes.Count " + node.nodes.Count);
+            //print("node.values.Count " + node.values.Count + " node.nodes.Count " + node.nodes.Count);
             for (int i = 0; i < node.values.Count; i++)
             {
                 ConfigNode.Value item = node.values[i];