diff --git a/src/main/java/appeng/core/features/AEFeature.java b/src/main/java/appeng/core/features/AEFeature.java
index f7e1e707c..edfe86917 100644
--- a/src/main/java/appeng/core/features/AEFeature.java
+++ b/src/main/java/appeng/core/features/AEFeature.java
@@ -164,6 +164,7 @@ public enum AEFeature
 	PATTERNS( "Patterns", Constants.CATEGORY_CRAFTING_FEATURES ),
 	CRAFTING_CPU( "CraftingCPU", Constants.CATEGORY_CRAFTING_FEATURES ),
 	CRAFTING_MANAGER_FALLBACK( "CraftingManagerFallback", Constants.CATEGORY_CRAFTING_FEATURES, "Use CraftingManager to find an alternative recipe, after a pattern rejected an ingredient. Should be enabled to avoid issues, but can have a minor performance impact." ),
+	INSANE_BLOCKING_MODE( "InsaneBlockingMode", Constants.CATEGORY_CRAFTING_FEATURES, "Use the default AE2 blocking mode that doesn't work on any machines" ),
 
 	BASIC_CARDS( "BasicCards", Constants.CATEGORY_UPGRADES ),
 	ADVANCED_CARDS( "AdvancedCards", Constants.CATEGORY_UPGRADES ),
diff --git a/src/main/java/appeng/helpers/DualityInterface.java b/src/main/java/appeng/helpers/DualityInterface.java
index 3c1791bca..d0fc09735 100644
--- a/src/main/java/appeng/helpers/DualityInterface.java
+++ b/src/main/java/appeng/helpers/DualityInterface.java
@@ -88,6 +88,8 @@ import appeng.api.util.AEPartLocation;
 import appeng.api.util.DimensionalCoord;
 import appeng.api.util.IConfigManager;
 import appeng.capabilities.Capabilities;
+import appeng.core.AEConfig;
+import appeng.core.features.AEFeature;
 import appeng.core.settings.TickRates;
 import appeng.me.GridAccessException;
 import appeng.me.helpers.AENetworkProxy;
@@ -893,6 +895,13 @@ public class DualityInterface implements IGridTickable, IStorageMonitorable, IIn
 		};
 	}
 
+	private static boolean invIsBlocked(InventoryAdaptor inv) {
+		if (AEConfig.instance().isFeatureEnabled(AEFeature.INSANE_BLOCKING_MODE))
+			return !inv.simulateRemove( 1, ItemStack.EMPTY, null ).isEmpty();
+		else
+			return inv.containsItems();
+	}
+
 	@Override
 	public boolean pushPattern( final ICraftingPatternDetails patternDetails, final InventoryCrafting table )
 	{
@@ -941,7 +950,7 @@ public class DualityInterface implements IGridTickable, IStorageMonitorable, IIn
 			{
 				if( this.isBlocking() )
 				{
-					if( !ad.simulateRemove( 1, ItemStack.EMPTY, null ).isEmpty() )
+					if( invIsBlocked(ad) )
 					{
 						continue;
 					}
@@ -992,7 +1001,7 @@ public class DualityInterface implements IGridTickable, IStorageMonitorable, IIn
 				final InventoryAdaptor ad = InventoryAdaptor.getAdaptor( te, s.getOpposite() );
 				if( ad != null )
 				{
-					if( ad.simulateRemove( 1, ItemStack.EMPTY, null ).isEmpty() )
+					if( !invIsBlocked(ad) )
 					{
 						allAreBusy = false;
 						break;