diff --git a/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakConfig.java b/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakConfig.java
index 4ee1d6e0..d7114767 100644
--- a/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakConfig.java
+++ b/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakConfig.java
@@ -78,6 +78,8 @@ public class BlockBreakConfig extends ACheckConfig {
     public final int        fastBreakBuffer;
     public final int        fastBreakInterval;
     public final ActionList fastBreakActions;
+    
+	public boolean improbableFastBreakCheck;
 
     public final boolean    noSwingCheck;
     public final ActionList noSwingActions;
@@ -100,6 +102,8 @@ public class BlockBreakConfig extends ACheckConfig {
         fastBreakInterval = data.getInt(ConfPaths.BLOCKBREAK_FASTBREAK_INTERVAL);
         fastBreakActions = data.getActionList(ConfPaths.BLOCKBREAK_FASTBREAK_ACTIONS, Permissions.BLOCKBREAK_FASTBREAK);
 
+        improbableFastBreakCheck = data.getBoolean(ConfPaths.COMBINED_IMPROBABLE_FASTBREAK_CHECK);
+        
         noSwingCheck = data.getBoolean(ConfPaths.BLOCKBREAK_NOSWING_CHECK);
         noSwingActions = data.getActionList(ConfPaths.BLOCKBREAK_NOSWING_ACTIONS, Permissions.BLOCKBREAK_NOSWING);
 
diff --git a/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakListener.java b/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakListener.java
index 65ca0e1f..fed40367 100644
--- a/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakListener.java
+++ b/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakListener.java
@@ -9,8 +9,6 @@ import org.bukkit.event.block.BlockBreakEvent;
 import org.bukkit.event.player.PlayerAnimationEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
 
-import fr.neatmonster.nocheatplus.checks.combined.Improbable;
-
 /*
  * M#"""""""'M  dP                   dP       M#"""""""'M                             dP       
  * ##  mmmm. `M 88                   88       ##  mmmm. `M                            88       
@@ -74,10 +72,6 @@ public class BlockBreakListener implements Listener {
         // Has the player broken blocks too quickly?
         if (fastBreak.isEnabled(player) && fastBreak.check(player, block))
             cancelled = true;
-        
-        // Combined speed:
-        if (Improbable.check(player, 1f, System.currentTimeMillis()))
-        	cancelled = true;
 
         // Did the arm of the player move before breaking this block?
         if (!cancelled && noSwing.isEnabled(player) && noSwing.check(player))
diff --git a/src/fr/neatmonster/nocheatplus/checks/blockbreak/FastBreak.java b/src/fr/neatmonster/nocheatplus/checks/blockbreak/FastBreak.java
index f2379887..2c6a0b87 100644
--- a/src/fr/neatmonster/nocheatplus/checks/blockbreak/FastBreak.java
+++ b/src/fr/neatmonster/nocheatplus/checks/blockbreak/FastBreak.java
@@ -7,6 +7,7 @@ import org.bukkit.entity.Player;
 
 import fr.neatmonster.nocheatplus.checks.Check;
 import fr.neatmonster.nocheatplus.checks.CheckType;
+import fr.neatmonster.nocheatplus.checks.combined.Improbable;
 
 /*
  * MM""""""""`M                     dP   M#"""""""'M                             dP       
@@ -78,10 +79,16 @@ public class FastBreak extends Check {
 
             // Reduce the violation level, the player was nice with blocks.
             data.fastBreakVL *= 0.9D;
+           
         }
 
         // Remember the block breaking time.
         data.fastBreakBreakTime = System.currentTimeMillis();
+        
+        // Combined speed:
+        // TODO: use some value corresponding to allowed block breaking speed !
+        if (cc.improbableFastBreakCheck && Improbable.check(player, 1f, System.currentTimeMillis()))
+        	cancel = true;
 
         return cancel;
     }
diff --git a/src/fr/neatmonster/nocheatplus/checks/combined/Improbable.java b/src/fr/neatmonster/nocheatplus/checks/combined/Improbable.java
index c2ad1510..3b32f43e 100644
--- a/src/fr/neatmonster/nocheatplus/checks/combined/Improbable.java
+++ b/src/fr/neatmonster/nocheatplus/checks/combined/Improbable.java
@@ -23,10 +23,8 @@ public class Improbable extends Check {
 	 * @param now
 	 * @return
 	 */
-	@SuppressWarnings("unused")
 	public static final boolean check(final Player player, final float weight, final long now){
-		if (true) return false; // DISABLED FOR THE MOMENT.
-		else return instance.checkImprobable(player, weight, now);
+		return instance.checkImprobable(player, weight, now);
 	}
 	
 	
diff --git a/src/fr/neatmonster/nocheatplus/config/ConfPaths.java b/src/fr/neatmonster/nocheatplus/config/ConfPaths.java
index bffb1ada..25d48e72 100644
--- a/src/fr/neatmonster/nocheatplus/config/ConfPaths.java
+++ b/src/fr/neatmonster/nocheatplus/config/ConfPaths.java
@@ -257,6 +257,9 @@ public abstract class ConfPaths {
 	public static final String  COMBINED_IMPROBABLE_CHECK                = COMBINED_IMPROBABLE + "active";
 	public static final String  COMBINED_IMPROBABLE_LEVEL                = COMBINED_IMPROBABLE + "level";
 	
+	private static final String COMBINED_IMPROBABLE_CHECKS               = COMBINED_IMPROBABLE + "checks.";               
+	public static final String  COMBINED_IMPROBABLE_FASTBREAK_CHECK      = COMBINED_IMPROBABLE_CHECKS + "fastbreak";
+	
 	public static final String  COMBINED_IMPROBABLE_ACTIONS              = COMBINED_IMPROBABLE + "actions";
 	
     /*
diff --git a/src/fr/neatmonster/nocheatplus/config/DefaultConfig.java b/src/fr/neatmonster/nocheatplus/config/DefaultConfig.java
index 04b94a2c..e0508fa0 100644
--- a/src/fr/neatmonster/nocheatplus/config/DefaultConfig.java
+++ b/src/fr/neatmonster/nocheatplus/config/DefaultConfig.java
@@ -206,12 +206,13 @@ public class DefaultConfig extends ConfigFile {
         set(ConfPaths.CHAT_NOPWNAGE_ACTIONS, "cancel log:nopwnage:2:5:cf cmd:kicknopwnage");
 
         
-//        /*
-//         * Combined !
-//         */
-//        set(ConfPaths.COMBINED_IMPROBABLE_CHECK , true);
-//        set(ConfPaths.COMBINED_IMPROBABLE_LEVEL, 300);
-//        set(ConfPaths.COMBINED_IMPROBABLE_ACTIONS, "cancel log:improbable:2:5:if");
+        /*
+         * Combined !
+         */
+        set(ConfPaths.COMBINED_IMPROBABLE_CHECK , false);
+        set(ConfPaths.COMBINED_IMPROBABLE_LEVEL, 300);
+        set(ConfPaths.COMBINED_IMPROBABLE_FASTBREAK_CHECK, false);
+        set(ConfPaths.COMBINED_IMPROBABLE_ACTIONS, "cancel log:improbable:2:5:if");
         
         /*
          * 888'Y88 ,e,          888       d8