diff --git a/pom.xml b/pom.xml
index 02f455e..9314288 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
     <groupId>com.songoda</groupId>
     <artifactId>UltimateStacker</artifactId>
     <modelVersion>4.0.0</modelVersion>
-    <version>1.11.7</version>
+    <version>1.11.8</version>
     <build>
         <defaultGoal>clean install</defaultGoal>
         <finalName>UltimateStacker-${project.version}</finalName>
diff --git a/src/main/java/com/songoda/ultimatestacker/entity/Check.java b/src/main/java/com/songoda/ultimatestacker/entity/Check.java
index 2c8e983..6e0a4f5 100644
--- a/src/main/java/com/songoda/ultimatestacker/entity/Check.java
+++ b/src/main/java/com/songoda/ultimatestacker/entity/Check.java
@@ -1,6 +1,8 @@
 package com.songoda.ultimatestacker.entity;
 
+import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 
 public enum Check {
@@ -52,6 +54,13 @@ public enum Check {
         this.isEnabledByDefault = isEnabledByDefault;
     }
 
+    public static List<Check> getChecks(List<String> strChecks) {
+        List<Check> checks = new ArrayList<>();
+        for (String checkStr : strChecks)
+            checks.add(getCheck(checkStr));
+        return checks;
+    }
+
     public boolean isEnabledByDefault() {
         return isEnabledByDefault;
     }
diff --git a/src/main/java/com/songoda/ultimatestacker/listeners/ItemListeners.java b/src/main/java/com/songoda/ultimatestacker/listeners/ItemListeners.java
index d97aa09..d3c06d6 100644
--- a/src/main/java/com/songoda/ultimatestacker/listeners/ItemListeners.java
+++ b/src/main/java/com/songoda/ultimatestacker/listeners/ItemListeners.java
@@ -7,6 +7,7 @@ import com.songoda.ultimatestacker.settings.Settings;
 import com.songoda.ultimatestacker.utils.Methods;
 import org.apache.commons.lang.StringUtils;
 import org.bukkit.block.BlockState;
+import org.bukkit.entity.Arrow;
 import org.bukkit.entity.Item;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
@@ -88,16 +89,16 @@ public class ItemListeners implements Listener {
 
     @EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
     public void onPickup(PlayerPickupItemEvent event) {
-        if (!Settings.STACK_ITEMS.getBoolean()) return;
+        if (!Settings.STACK_ITEMS.getBoolean() || event.getItem() instanceof Arrow) return;
         // Amount here is not the total amount of item (32 if more than 32) but the amount of item the player can retrieve
         // ie there is x64 diamonds blocks (so 32), the player pick 8 items so the amount is 8 and not 32
-        int amount = UltimateStacker.getActualItemAmount(event.getItem());
-        if (/*event.getItem().getItemStack().getAmount()*/amount < (event.getItem().getItemStack().getMaxStackSize() / 2)) {
-        	// Update
-        	UltimateStacker.updateItemAmount(event.getItem(), event.getRemaining());
-        	return;
-        }
-        event.setCancelled(true);
+
+        Item item = event.getItem();
+        ItemStack stack = item.getItemStack();
+        int amount = UltimateStacker.getActualItemAmount(item);
+        if (amount < (stack.getMaxStackSize() / 2)) return;
+
+        event.getItem().setItemStack(stack);
 
         event.getPlayer().playSound(event.getPlayer().getLocation(), CompatibleSound.ENTITY_ITEM_PICKUP.getSound(), .2f, (float) (1 + Math.random()));
 
diff --git a/src/main/java/com/songoda/ultimatestacker/tasks/StackingTask.java b/src/main/java/com/songoda/ultimatestacker/tasks/StackingTask.java
index 17291f5..5e2647b 100644
--- a/src/main/java/com/songoda/ultimatestacker/tasks/StackingTask.java
+++ b/src/main/java/com/songoda/ultimatestacker/tasks/StackingTask.java
@@ -146,9 +146,11 @@ public class StackingTask extends BukkitRunnable {
         int maxEntityStackSize = getEntityStackSize(livingEntity);
 
         // Get similar entities around our entity and make sure those entities are both compatible and stackable.
-        List<LivingEntity> stackableFriends = plugin.getEntityUtils().getSimilarEntitiesAroundEntity(livingEntity, location)
-                .stream().filter(entity -> isEntityStackable(entity, location))
-                .collect(Collectors.toCollection(LinkedList::new));
+        List<LivingEntity> stackableFriends = new LinkedList<>();
+        for (LivingEntity entity : plugin.getEntityUtils().getSimilarEntitiesAroundEntity(livingEntity, location)) {
+            if (!isEntityStackable(entity, location)) continue;
+            stackableFriends.add(entity);
+        }
 
         // Loop through our similar stackable entities.
         for (LivingEntity entity : stackableFriends) {
diff --git a/src/main/java/com/songoda/ultimatestacker/utils/EntityUtils.java b/src/main/java/com/songoda/ultimatestacker/utils/EntityUtils.java
index 598fdbe..7497071 100644
--- a/src/main/java/com/songoda/ultimatestacker/utils/EntityUtils.java
+++ b/src/main/java/com/songoda/ultimatestacker/utils/EntityUtils.java
@@ -19,7 +19,7 @@ public class EntityUtils {
 
     UltimateStacker plugin = UltimateStacker.getInstance();
 
-    private final List<String> checks = Settings.STACK_CHECKS.getStringList();
+    private final List<Check> checks = Check.getChecks(Settings.STACK_CHECKS.getStringList());
     private final boolean stackFlyingDown = Settings.ONLY_STACK_FLYING_DOWN.getBoolean(),
             keepFire = Settings.KEEP_FIRE.getBoolean(),
             keepPotion = Settings.KEEP_POTION.getBoolean(),
@@ -100,8 +100,7 @@ public class EntityUtils {
         if (ServerVersion.isServerVersionAtLeast(ServerVersion.V1_12))
             newEntity.setInvulnerable(false);
 
-        for (String checkStr : checks) {
-            Check check = Check.valueOf(checkStr);
+        for (Check check : checks) {
             switch (check) {
                 case AGE: {
                     if (!(toClone instanceof Ageable) || ((Ageable) toClone).isAdult()) break;
@@ -255,15 +254,17 @@ public class EntityUtils {
 
     public List<LivingEntity> getSimilarEntitiesAroundEntity(LivingEntity initialEntity, Location location) {
         // Create a list of all entities around the initial entity of the same type.
-        List<LivingEntity> entityList = getNearbyEntities(location, searchRadius, stackWholeChunk)
-                .stream().filter(entity -> entity.getType() == initialEntity.getType() && entity != initialEntity)
-                .collect(Collectors.toCollection(LinkedList::new));
+        List<LivingEntity> entityList = new LinkedList<>();
+        for (LivingEntity entity : getNearbyEntities(location, searchRadius, stackWholeChunk)) {
+            if (entity.getType() != initialEntity.getType() || entity == initialEntity)
+                continue;
+            entityList.add(entity);
+        }
 
         if (stackFlyingDown && Methods.canFly(initialEntity))
             entityList.removeIf(entity -> entity.getLocation().getY() > initialEntity.getLocation().getY());
 
-        for (String checkStr : checks) {
-            Check check = Check.getCheck(checkStr);
+        for (Check check : checks) {
             if (check == null) continue;
             switch (check) {
                 case SPAWN_REASON: {