diff --git a/CPS/src/lu/list/itis/dkd/tui/cps/variable/NumericalVariable.java b/CPS/src/lu/list/itis/dkd/tui/cps/variable/NumericalVariable.java
index 441694c201f49a0b6be738426dc3faf008d57b8c..40de7e464ea8be898eb16cd5c56bb814bb7f66a6 100644
--- a/CPS/src/lu/list/itis/dkd/tui/cps/variable/NumericalVariable.java
+++ b/CPS/src/lu/list/itis/dkd/tui/cps/variable/NumericalVariable.java
@@ -487,7 +487,7 @@ public class NumericalVariable extends Variable<Double> {
 
     public double getConstrainedValue() {
         this.normalizedValue = this.normalizeValue(this.value);
-        return this.minValue + (this.normalizedValue * this.valueRange);
+        return roundToPrecision(this.minValue + (this.normalizedValue * this.valueRange));
     }
 
     // ---------------------------------------------------------------------------
diff --git a/CPS/src/lu/list/itis/dkd/tui/utility/ThrottlingExecutor.java b/CPS/src/lu/list/itis/dkd/tui/utility/ThrottlingExecutor.java
index eee6c8ad909582bc52536518738bf9c45635d5d1..02175ec8c4cf3afc407664d7f34d3e6ab01c22fd 100644
--- a/CPS/src/lu/list/itis/dkd/tui/utility/ThrottlingExecutor.java
+++ b/CPS/src/lu/list/itis/dkd/tui/utility/ThrottlingExecutor.java
@@ -34,6 +34,7 @@ import java.util.concurrent.TimeUnit;
 public class ThrottlingExecutor {
 
     private long last;
+    private long projected;
     private ScheduledFuture<?> scheduled;
     private long coalescePeriod;
 
@@ -54,6 +55,7 @@ public class ThrottlingExecutor {
     public ThrottlingExecutor() {
         this.coalescePeriod = 0;
         this.last = 0;
+        this.projected = 0;
     }
 
     // ---------------------------------------------------------------------------
@@ -91,12 +93,15 @@ public class ThrottlingExecutor {
     public void submit(TimerTask task) {
         long now = System.currentTimeMillis();
 
-        if ((this.coalescePeriod > 0) && (last > 0)) {
+        if (this.coalescePeriod > 0) {
             long elapsed = now - last;
+            long delay = 0;
 
             if (elapsed < this.coalescePeriod) {
+                delay = this.coalescePeriod - elapsed;
+
                 if (LOGGER.isDebugEnabled()) {
-                    LOGGER.debug("Task submitted within {} ms coalesce period! Deferred execution in {} ms!", this.coalescePeriod, (this.coalescePeriod - elapsed)); //$NON-NLS-1$
+                    LOGGER.debug("Task submitted within {} ms coalesce period! Deferred execution in {} ms!", this.coalescePeriod, delay); //$NON-NLS-1$
                 }
 
                 if (scheduled != null) {
@@ -106,13 +111,18 @@ public class ThrottlingExecutor {
                     }
 
                 }
-                scheduled = executor.schedule(task, (this.coalescePeriod - elapsed), TimeUnit.MILLISECONDS);
+                projected = last + coalescePeriod;
+                scheduled = executor.schedule(task, delay, TimeUnit.MILLISECONDS);
                 return;
             }
+
+            elapsed = now - projected;
+            delay = (elapsed < this.coalescePeriod) ? this.coalescePeriod - elapsed : 0;
+            scheduled = executor.schedule(task, delay, TimeUnit.MILLISECONDS);
+            last = now + delay;
+        } else {
+            scheduled = executor.schedule(task, 0, TimeUnit.MILLISECONDS);
         }
-        executor.schedule(task, 0, TimeUnit.MILLISECONDS);
-        last = now;
-        scheduled = null;
     }
 
     // ---------------------------------------------------------------------------
diff --git a/CPS/src/lu/list/itis/dkd/tui/widget/ValueWidget.java b/CPS/src/lu/list/itis/dkd/tui/widget/ValueWidget.java
index fb6cc43951559393206b67c841d2b30ab2457941..55dca49f74e2ff4052af033ea22a32d3ebb93cf7 100644
--- a/CPS/src/lu/list/itis/dkd/tui/widget/ValueWidget.java
+++ b/CPS/src/lu/list/itis/dkd/tui/widget/ValueWidget.java
@@ -219,21 +219,21 @@ public class ValueWidget extends TetherableWidget implements InformationProvider
      */
     // ---------------------------------------------------------------------------
 
-    private void updateDisplays() {
+    private void updateDisplays(double newValue) {
 
         for (ValueCorona display : dispatcher) {
-            display.setInformation(this.variable.getConstrainedValue());
+            display.setInformation(newValue);
         }
     }
 
     // ---------------------------------------------------------------------------
 
-    @SuppressWarnings("unchecked")
-    protected void updateTethers(Double value) {
+    @SuppressWarnings({"unchecked", "rawtypes"})
+    protected void updateTethers(Double newValue) {
         if (this.isTethered()) {
             List<InformationFeed> dataFeeds = this.getTethers(InformationFeed.class);
             for (InformationFeed<Double> tether : dataFeeds) {
-                tether.setInformation(value);
+                tether.setInformation(newValue);
             }
         }
     }
@@ -272,8 +272,10 @@ public class ValueWidget extends TetherableWidget implements InformationProvider
         value = Math.min(value, this.upperBound);
 
         variable.setValue(value);
+        value = variable.getConstrainedValue();
+
         this.updateTethers(value);
-        this.updateDisplays();
+        this.updateDisplays(value);
 
         if (LOGGER.isDebugEnabled()) {
             LOGGER.debug("{} = {}", variable.getName(), value); //$NON-NLS-1$
@@ -290,7 +292,8 @@ public class ValueWidget extends TetherableWidget implements InformationProvider
     public void actionDrop(TangibleObject tuioObject) {
 
         if (Double.isNaN(dropAngle)) {
-            dropAngle = (isPersistent) ? 0 : AngleUtils.moduloTwoPi(tuioObject.getAngle());
+            // dropAngle = (isPersistent) ? 0 : AngleUtils.moduloTwoPi(tuioObject.getAngle());
+            dropAngle = AngleUtils.moduloTwoPi(tuioObject.getAngle());
         }
 
         if (!isPersistent) {
@@ -316,6 +319,8 @@ public class ValueWidget extends TetherableWidget implements InformationProvider
         if (!this.isPersistent(tuioObject.getObjectId())) {
             getVariable().setValue(initialValue);
         }
+
+        dropAngle = Double.NaN;
     }
 
     // ---------------------------------------------------------------------------