diff --git a/src/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/SlimefunItem.java b/src/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/SlimefunItem.java
index 935350a1f..2e287ab58 100644
--- a/src/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/SlimefunItem.java
+++ b/src/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/SlimefunItem.java
@@ -50,6 +50,7 @@ public class SlimefunItem {
 	private boolean replacing = false;
 	private boolean addon = false;
 	private String permission = "";
+	private List<String> noPermissionTooltip;
 	private Set<ItemHandler> itemhandlers = new HashSet<>();
 	private boolean ticking = false;
 	private BlockTicker blockTicker;
@@ -156,6 +157,7 @@ public class SlimefunItem {
 	 * @since 4.1.11
 	 */
 	public String getPermission() 			{		return permission;		}
+	public List<String> getNoPermissionTooltip()    {       return noPermissionTooltip;       }
 	public Set<ItemHandler> getHandlers() 		{		return itemhandlers;		}
 	public boolean isTicking() 			{		return ticking;			}
 	/**
@@ -194,7 +196,8 @@ public class SlimefunItem {
 			SlimefunPlugin.getItemCfg().setDefaultValue(this.id + ".allow-enchanting", this.enchantable);
 			SlimefunPlugin.getItemCfg().setDefaultValue(this.id + ".allow-disenchanting", this.disenchantable);
 			SlimefunPlugin.getItemCfg().setDefaultValue(this.id + ".required-permission", this.permission);
-			
+			SlimefunPlugin.getItemCfg().setDefaultValue(this.id + ".no-permission-tooltip", new String[] {"&4&lLOCKED", "", "&rYou do not have Permission", "&rto access this Item"});
+
 			if (this.keys != null && this.values != null) {
 				for (int i = 0; i < this.keys.length; i++) {
 					SlimefunPlugin.getItemCfg().setDefaultValue(this.id + '.' + this.keys[i], this.values[i]);
@@ -221,6 +224,7 @@ public class SlimefunItem {
 				this.enchantable = SlimefunPlugin.getItemCfg().getBoolean(this.id + ".allow-enchanting");
 				this.disenchantable = SlimefunPlugin.getItemCfg().getBoolean(this.id + ".allow-disenchanting");
 				this.permission = SlimefunPlugin.getItemCfg().getString(this.id + ".required-permission");
+				this.noPermissionTooltip = SlimefunPlugin.getItemCfg().getStringList(this.id + ".no-permission-tooltip");
 				SlimefunPlugin.getUtilities().enabledItems.add(this);
 				if (slimefun) SlimefunPlugin.getUtilities().vanillaItems++;
 				SlimefunPlugin.getUtilities().itemIDs.put(this.id, this);
diff --git a/src/me/mrCookieSlime/Slimefun/Objects/tasks/RainbowTicker.java b/src/me/mrCookieSlime/Slimefun/Objects/tasks/RainbowTicker.java
index cab0bf760..af8a91e4c 100644
--- a/src/me/mrCookieSlime/Slimefun/Objects/tasks/RainbowTicker.java
+++ b/src/me/mrCookieSlime/Slimefun/Objects/tasks/RainbowTicker.java
@@ -49,7 +49,7 @@ public class RainbowTicker extends BlockTicker {
 
 	@Override
 	public void uniqueTick() {
-		index = ((index == queue.length - 1) ? 0: index + 1);
+		index = ((index >= queue.length - 1) ? 0: index + 1);
 		meta = queue[index];
 	}
 
diff --git a/src/me/mrCookieSlime/Slimefun/Setup/Messages.java b/src/me/mrCookieSlime/Slimefun/Setup/Messages.java
index a98c4e735..d6b1fff38 100644
--- a/src/me/mrCookieSlime/Slimefun/Setup/Messages.java
+++ b/src/me/mrCookieSlime/Slimefun/Setup/Messages.java
@@ -69,8 +69,6 @@ public final class Messages {
 		local.setDefault("messages.cannot-place" ,"&cYou cannot place that block there!");
 		local.setDefault("messages.no-pvp" ,"&cYou cannot pvp in here!");
 
-		local.setDefault("tooltips.item-permission", "", "&rYou do not have Permission", "&rto access this Item");
-
 		local.setDefault("machines.pattern-not-found", "&eSorry, I could not recognize this Pattern. Please place the Items in the correct Pattern into the Dispenser.");
 		local.setDefault("machines.unknown-material", "&eSorry, I could not recognize the Item in my Dispenser. Please put something in that I know.");
 		local.setDefault("machines.wrong-item", "&eSorry, I could not recognize the Item you right clicked me with. Check the Recipes and see which Items you can use.");
diff --git a/src/me/mrCookieSlime/Slimefun/SlimefunGuide.java b/src/me/mrCookieSlime/Slimefun/SlimefunGuide.java
index 5a8e6c9e8..71260ec6b 100644
--- a/src/me/mrCookieSlime/Slimefun/SlimefunGuide.java
+++ b/src/me/mrCookieSlime/Slimefun/SlimefunGuide.java
@@ -713,8 +713,8 @@ public final class SlimefunGuide {
 							index++;
 						}
 						else {
-							List<String> tooltip = Messages.local.getTranslation("tooltips.item-permission");
-						    menu.addItem(index, new CustomItem(Material.BARRIER, StringUtils.formatItemName(sfitem.getItem(), false), tooltip.toArray(new String[tooltip.size()])));
+							List<String> message = sfitem.getNoPermissionTooltip();
+						    menu.addItem(index, new CustomItem(Material.BARRIER, StringUtils.formatItemName(sfitem.getItem(), false), message.toArray(new String[message.size()])));
 							menu.addMenuClickHandler(index, (pl, slot, item, action) -> false);
 							index++;
 						}
diff --git a/src/me/mrCookieSlime/Slimefun/listeners/FurnaceListener.java b/src/me/mrCookieSlime/Slimefun/listeners/FurnaceListener.java
index 829fd1d14..fcfdff55a 100644
--- a/src/me/mrCookieSlime/Slimefun/listeners/FurnaceListener.java
+++ b/src/me/mrCookieSlime/Slimefun/listeners/FurnaceListener.java
@@ -26,7 +26,7 @@ public class FurnaceListener implements Listener {
 		SlimefunItem furnace = BlockStorage.check(e.getBlock());
 
 		if (furnace instanceof EnhancedFurnace && ((EnhancedFurnace) furnace).getFuelEfficiency() > 0) {
-			e.setBurnTime(((int) ((1 + 0.2 * ((EnhancedFurnace) furnace).getFuelEfficiency()) * e.getBurnTime())));
+			e.setBurnTime(((EnhancedFurnace) furnace).getFuelEfficiency() * e.getBurnTime());
 		}
 	}
 
@@ -40,7 +40,7 @@ public class FurnaceListener implements Listener {
 			ItemStack result = f.getInventory().getResult() == null ? RecipeCalculator.getSmeltedOutput(f.getInventory().getSmelting().getType()) : f.getInventory().getResult().clone();
 
 			if (result != null) {
-				f.getInventory().setResult(new CustomItem(result, result.getAmount() + amount > result.getMaxStackSize() ? result.getMaxStackSize() : result.getAmount() + amount));
+				f.getInventory().setResult(new CustomItem(result, Math.min(result.getAmount() + amount, result.getMaxStackSize())));
 			}
 		}
 	}